What are the solutions to the equation $x^{2} = - x + 72$ $x^2 = -x+ 72$ ?

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What are the solutions to the equation $x^{2} = - x + 72$ $x^2 = -x+ 72$ ?

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Answer 1 · 2018-04-18T01:47:00

x=8,-9

Explanation:

1.) $x^{2} = - x + 72$ $x^2 = -x +72$
2.) $x^{2} + x = 72$ $x^2+x= 72$
3.) $x^{2} + x - 72 = 0$ $x^2+x-72= 0$
4.) $(x + 9) (x - 8) = 0$ $(x+9)(x-8)=0$
When #x=8 or -9, the expression is equivalent to zero.

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What are the solutions to the equation $x^{2} = - x + 72$ $x^2 = -x+ 72$ ?

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What are the solutions to the equation x2=−x+72x^2 = -x+ 72?

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What are the solutions to the equation $x^{2} = - x + 72$ $x^2 = -x+ 72$ ?