Question

HELP !! GIVING OUT MEDALS ;) NEED ANSWER NOW!!
Evaluate 2b^2 - 3b + 4a^2 for a = -6 and b =8
A. -40
B. 202
C. 248
D. 346

Answer 1

You have to insert the a and b in your equation

Answer 2

yeah just plug in soo

2(8^2) - 3(8) + 4 x-6^2

Answer 3

ya so when you plug in the values you get 248

Answer 4

-40

Answer 5

depends on if you use parenthesis lol

Answer 6

I might have plugged in wrong

Answer 7

2*8² -3*8 +4*(-6)² = 2*64 -24 + 4*36 =

Answer 8

but if you plug in correct you should get one of the answers above,when i plugged in I got -40 so just plug in and do PEMDAS

Answer 9

128-24 + 148 = 252
(-6)² =
-6*-6 = +36

Answer 10

exactly, 2*64= 128
3*8=24
4*36=144
so 128-24+144=248

Answer 11

when negative numbers are squared they become positive

Answer 12

Is it 248 , or -40?

Answer 13

sorry my 148 should have been 144
so 248
definitely

Answer 14

yeah , its 248 thanks