Question

The value of p of x is 2 x square + 7 x + 3 at x is equals to minus 2

Answer 1

p = ?

x = -2

2x^2+7x+3

Plug in!!

2(-2)^2+7(-2)+3

PEMDAS!

Skip to exponents

2(-2)^2+7(-2)+3

All negative numbers to the power of an even number are positive(-2^2=4)

All negative numbers to the power of an odd number are negative(-2^3=-8)

2(4)+7(-2)+3

Multiply!!!

8+(-14)+3

Add and subtract left to right!

-6+3

-3

p=-3