-3(x+3)^2-3+3x simplify in standard form

Mathematics

1 answer:

IrinaK [193]2 years ago

6 0

Answer: −3x²−15x−30

Step-by-step explanation: use Square of Sum (a+b)²=a²+2ab+b²

−3(x²+2x×3+3²)-3+3x

−(3x² +18x+27)−3+3x

−3x²−18x−27−3+3x

−3x²+(−18x+3x)+(−27−3)

−3x²−15x−30

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