SOLUTION: -4x.(2x+5)+x+7=3x.(x+3)

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Question 846059: -4x.(2x+5)+x+7=3x.(x+3)
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
-4x%282x%2B5%29%2Bx%2B7=3x%28x%2B3%29
-8x%5E2-20x%2Bx%2B7=3x%5E2%2B9x
-11x%5E2-28x%2B7=0
Use the quadratic formula,
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+


x+=+%2828+%2B-+sqrt%28+784%2B308%29+%29%2F%28-22%29+
x+=+%2828+%2B-+sqrt%28+1092%29+%29%2F%28-22%29+
x+=+%2828+%2B-+2%2Asqrt%28+273%29+%29%2F%28-22%29+
x+=+%2814+%2B-+sqrt%28+273%29+%29%2F%28-11%29+