Question

The value of 3(x+2)^2 when x =-4
I can't remember the order

Answer 1

remember, PEMDAS
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)

Answer 2

Do I foil it?

Answer 3

Well you already have what x is, so you would just plug x in. If you were expanding, then yes, you foil it.

Answer 4

I got 36 but I think it's wrong

Answer 5

so since x = -4

\[3(-4+2)^2\]

Answer 6

sorry, \[3(-2)^2\]

Answer 7

\[3(-2)^2 = 3(4)\]

Answer 8

\[3\times4\]

Answer 9

and that equals 12

Answer 10

Thank you can you double check another answer for me

Answer 11

9y^2-4x
X=-4 and y=1

Answer 12

\[9y^2-4x\]

Answer 13

and we have y =1, and x = -4 right?

Answer 14

I got 25

Answer 15

so we plug in 1 and -4 into the equation
\[9(1)^2-4(-4)\]

Answer 16

\[9(1)-(-16) \rightarrow 9+16=25\]

Answer 17

I also got 25, so it seems to be the right answer.

Answer 18

Ty!