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Factor 5x

5x {}^(2) + 10x - 15

User Simpu
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1 Answer

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5x^2+10x-15=5(x^2+2x-3)=5(x^2+3x-x-3)\\\\=5[x(x+3)-1(x+3)]=5(x+3)(x-1)
User Pedrom
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