Question

Simplify 99 - 3(4 • 23 )

Answer 1

use the distributive property of multiplication here

Answer 2

here, follow GEMDA

Answer 3

is that a multiply between 4 and 23

Answer 4

first follow the order of operations

Answer 5

@ jimmy rep yes

Answer 6

so, Groupings or Paranthesis, then Exponents, then Multipliation, then Division then Addition

Answer 7

@dplan thanks :))

Answer 8

so following that, let's look at the #'s in the parantheseses

Answer 9

whic are (4 * 23)

Answer 10

ok well do whats in the brackets first

Answer 11

now, follow the order of operations again....so here, multiply 4 and 23

Answer 12

so you now have 99 - 3 * (the product of 4 and 23)

Answer 13

Order of operations says Parentheses, Exponents, (Multiplication and Division), (Addition and Subtraction)

One way to write multiplication is to use a dot. When you are following order of operations, you look at what is inside the parentheses first to see if there is some sort of operation itself that can be simplified. For example, if something like (-2) was in your parentheses, you just move on.

After you simplify inside the parentheses, you would look if there are any exponents. If not, move onto multiplication and division which have equal priority, from left to right.

After that, finish up and addition and subtraction leftover which also have equal priority from left to right.

Answer 14

that is 92

Answer 15

ok, cool, now you have 99 - 3 * 92

Answer 16

yes

Answer 17

can you take it from here?

Answer 18

no lol ! keep helping please :))

Answer 19

heh, OK

Answer 20

im so confused thanks again

Answer 21

so now, multiply 3 and 92

Answer 22

so you'll have 99 - product of 3 and 92

Answer 23

276

Answer 24

yes

Answer 25

now you have 99 - 276

Answer 26

subtract 276 from 99 for the answer

Answer 27

thanks i have one more question !

Answer 28

evaluate 4 to the 4th power?

Answer 29

evaluate -4 to the 4th power

Answer 30

4^4 right?

Answer 31

OK, what that means is thus (4)*(4)*(4)*(4)

Answer 32

yes but -

Answer 33

is it (-4) ^ 4 or -4 ^4?

Answer 34

the 1st one

Answer 35

The rule of exponents says the exponent only affects the base.

Answer 36

The base is whatever is right next to the exponent.

Answer 37

a negative sign is the same as -1

Answer 38

So, if the whole inside of the parentheses is getting raised to a power, you multiply it by itself that many times.

Answer 39

(-4)(-4)(-4)(-4)

Answer 40

ok

Answer 41

otherwise, it's - 4*4*4*4

Answer 42

Okay i get that but how do you evaluate it because i had tried to solve it but got it wrong

Answer 43

you evaluate through the multiplication, like how mathgirl set it up: (-4)*(-4)*(-4)*(-4)

Answer 44

a negative times a negative is positive....and a negative times a positive is negative

Answer 45

so (-4)(-4) = 16
16 (-4) = ?

Answer 46

-64

Answer 47

64

Answer 48

it would be negative

Answer 49

because now we have a positive times a negative

Answer 50

yes sorry :)

Answer 51

i meant, even power = positive number

Answer 52

odd power = neg number

Answer 53

so you're close...if you have even powers you could simply evaluate up to half...so here we had (-4)^4 --> (-4)^2 * (-4)^2 --> = 16 * 16

Answer 54

because if you are multiplying a negative number an odd number of times, you'll always be left with one more neg number to multiply by

Answer 55

okay i need to know how to get the answer you guys are helping me so much !

Answer 56

no problem, that's what this site is for ;)

Answer 57

oh, nice avatar!

Answer 58

thanks :) you helpin me the most your straiqht to the point n what avatar?

Answer 59

you're new picture

Answer 60

Thats me:)

Answer 61

okay so the 1st question i asked i put wrong here is the real question lol

Answer 62

I just typed it wrong

Answer 63

awesome, well I need to go, but if you have more questions, ask them! if you see a question you think you can answer, you should try to answer

Answer 64

\[99-3(4\times2^{3}\]