Factorize the polynomial x^2+2x-15
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x²+2x-15= (x-3) (x+5)
Step-by-step explanation:
x²+2x-15
=x²+5x-3x-15(by splitting the mid term)
=x(x+5)-3(x+5)
=(x-3) (x+5)
therefore, x²+2x-15=(x-3) (x+5)
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