simplify x²(3 + 7x ) + 15x²- 6x( x-2)
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Answer:
12x²+7x³+12x
Step-by-step explanation:
x²(3 + 7x ) + 15x²- 6x( x-2)
3x²+7x³+15x²-6x²+12x
3x²+15x²-6x²+7x³+12x
12x²+7x³+12x
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