Answer:
-14+63x²
Step-by-step explanation:
(sot)=s(tx)
=s(3x)
=2-(3x)²
=2-9x²
(sot)(-7)=-7(2-9x²)
=-14+63x²
I hope I helped
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Answer:15
Step-by-step explanation:
Answer:
x = 2
Step-by-step explanation:
x + 1 + 4 = 2x + 3
x + 5 = 2x +3
x + 2 = 2x
2 = x
x = 2
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