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expeople1 [14]
2 years ago
5

Let f(x)=x^{2}+18x+7\ and\ g(x)=-3x^{2}+2x-9.f(x)=x^2 +18x+7 and g(x)=−3x^2 +2x−9. Identify the solution(s) of f(x)=g(x).f(x)=g(

x).
Mathematics
1 answer:
brilliants [131]2 years ago
7 0

Answer:

x = -2

Step-by-step explanation:

f(x)=x^{2}+18x+7

g(x)=-3x^{2}+2x-9

f(x)=g(x)

\implies x^2 +18x+7=-3x^2 +2x-9

\implies 4x^2 +16x+16=0

\implies x^2 +4x+4=0

\implies (x+2)^2=0

\implies x+2=0

\implies x=-2

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