Question

Evaluate polynomial for x = −3.

4x2 − 6x + 9 for x = -3

4(-3)^2 – 6(-3) + 9
= 4(-9) – 6(-3) + 9
= 36+ 18 + 9
= -3

Can someone check my problem for me please

Answer 1

when u square a number u square the negative sign as well -3
ur step 2 is wrong and 63 should be answer

Answer 2

= 4(-9) – 6(-3) + 9
so what is wrong in this step?

Answer 3

(-3)^2=9

Answer 4

ok mathematicalro..where to from there. I'm confused

Answer 5

Would any one mind writing this out the correct way so I can understand?

Answer 6

its not 4(-9) – 6(-3) + 9
its 4(9)-6(-3)+9
= 36+ 18 + 9
=63