3 years ago

Which quadratic equation is equivalent to (x+2)2+5(x+2)-6=0

Mathematics

1 answer:

professor190 [17]3 years ago

6 0

$(x+2)^2+5(x+2)-6=0\\\\x^2+2\cdot x\cdot2+2^2+5\cdot x+5\cdot2-6=0\\\\x^2+4x+4+5x+4-6=0\\\\x^2+9x+2=0$

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