Question

PLEASE HELP ME!!!!!!!!!!!

Answer 1

f(-3) = x² - 2x + 3

Plug in -3 for x.

(-3)² - 2(-3) + 3

Distribute the exponent inside the parentheses (-3)^2.

9 - 2(-3) + 3

Multiply -2 * -3.

9 + 6 + 3

Solve from left to right;

18

is your answer.

Answer 2

`f(x) = x^(2) -2x+3`

Since x is equal to -3, substitute all the x's with -3.

`(-3)^(2) - 2 \cdot -3 + 3`

`Parentheses \\ Exponents \\ Multiplication \\ Division \\ Addition \\ Subtraction`

Parentheses is first:

`(-3)^(2) = -3 * -3 = 9`

Next is multiplication:

`2 * -3 = -6`

The new equation is:

`9-(-6)+3`

You start from left to right. When you're subtracting a negative number from a positive, the sign changes and you add and the negative number becomes positive.

`9-(-6)+3 \rightarrow 9+6+3`

Add from left to right:

`9+6 = 15`

Add 3:

`15+3 = 18`

`f(-3) = \bf 18`