3x^2 + 2x - 6 if x = -2
=3(-2)^2 + 2(-2) - 6
=12 - 4 - 6
= 2
5x^2 + 6x - 2 if x = -2
=5(-2)^2 + 6(-2) - 2
=20 - 12 - 2
= 6
-2x^3 + 2x^2 if x = 2
= -2(2)^3 + 2(2)^2
= -16 + 8
= -8
Answer:
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:D
Answer:
x = 9
Step-by-step explanation:
Given
6(x - 3) = 3x + 9 ← distribute left side
6x - 18 = 3x + 9 ( subtract 3x from both sides )
3x - 18 = 9 ( add 18 to both sides )
3x = 27 ( divide both sides by 3 )
x = 9
All it wants to know is the difference, that right there should tell you its subtraction. So, the useful information is they scored 52 first and 42 after.
Your problem will be set up as 52-42
your answer should be 10.
i believe the correct answer is 163