Question

Choose the correct simplification of (2a^2 + 7a − 3) + (4a^2 − 3).

Answer 1

A. 6a^2 + 7a

B. −2a^2 + 7a − 6

C. −2a^2 + 7a

D. 6a^2 + 7a − 6

Answer 2

break it down piece by piece again.

what is 4a^2 + 2a^2 ?

Answer 3

6a^2

Answer 4

Yup, you can't match 7a with anything in the other expression, so that stays them same.

finally, what is -3 -3 ?

Answer 5

-3 -3 is -6

Answer 6

yes, so what answer do you end up with?

Answer 7

D 6a^2 +7a-6

Answer 8

That is correct

Answer 9

its easy when somone does it like that with me Thank you again lol

Answer 10

No problem!

Answer 11

wait

Answer 12

if i have (x^9)^2 I multiply the exponents right

Answer 13

You sure would. You'd get x^18

Answer 14

Okay

Answer 15

Yeah, exponents are just about memorizing a bunch of rules. Practice makes perfect

Answer 16

but x^8 over x^3 why dont i multiply that?

Answer 17

I add so only wje its in parenthesis i multiply

Answer 18

when*

Answer 19

x^8 / x^3 is division and you ALWAYS subtract

x^8 * x^3 is multiplication and you ALWAYS add

if you have (x^8)^3 then you multiply because x^8 is being raised to the third power

Answer 20

Ohhh okay i guess i get confused on them

Answer 21

thankss

Answer 22

np