Answered

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A number is squared. This is added to fifteen and the product of eight and the number, to give zero.

Sagot :

A number is squared. This is added to fifteen and the product of eight and the number, to give zero. ​

the algebraic expression is

Let

x ----> the number

x^2+(15+8x)=0

therefore

x^2+8x+15=0

solve the quadratic equation

Solve by using calculator

x=-5 and x=-3

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