Question

Simplify the expression.

(10 + 1)2 – 52


A 125

B 75

C 96

D 146

Answer 1

@geny55

Answer 2

\[\huge\rm (10+1)^2-52\] like this /

Answer 3

?*

Answer 4

i guess it's \[\huge\rm (10+1)^2 -5^2\]right ?

Answer 5

if yes then start with the parentheses
add those two numbers inthe parentheses and then take square

Answer 6

I tried and got -41?

Answer 7

how did you get -41?
explain plz :=)

Answer 8

well you said to do that problem right^ ? well I tried it anyways (10+1) 2 - 52 and got -41 but im not sure if im doing it right cause that is not an option and at first I thought that it would be 75 which is option b , so im a little confused , am I right on b? cause I couldn figure out but I looked out for some help , but I don't know 100% if they are sure

Answer 9

what was ur first step ?

Answer 10

well my first step was to do (10 + 1) first and I got 11 and then my next step was to do 2-52 which is -50 then I was thinking now to add -50 + 11 =-39 but the thing is that when I do the problem it doesn't seem to come up with an option :/

Answer 11

hold on before you respond . let me double check please first

Answer 12

well I still had gotten -41 but what I did is addi guess 11+ -41+ -39= -80 so I think its b for an estimate since 80 is closer but im not too sure im right , am I

Answer 13

2 is an exponent right ?

Answer 14

yes

Answer 15

it should be (11)^2 which is same as 11 times 11
and same with 5^2 same as 5 times 2 and then subtract

Answer 16

\[(11)^2-5^2\]
11 times 11- 5 times 5

Answer 17

ok I did 11*11 and 5*2 then I did 121-10 and got 111

Answer 18

no wait I did 5*5 the n I got 96

Answer 19

\(\huge\color{green}{\checkmark}\)

Answer 20

so c? yea thanks!

Answer 21

yep no problem :=)