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2x*2+7x-15=0
We simplify the equation to the form, which is simple to understand
2x*2+7x-15=0
Simplifying:
+4x+7x-15=0
We move all terms containing x to the left and all other terms to the right.
+4x+7x=0+15
We simplify left and right side of the equation.
+11x=+15
We divide both sides of the equation by 11 to get x.
x=1.36363636364
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