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How do you solve z2 plus 8z equals -15? - Answers

Because of the zero property of multiplication we must first set it equal to zero and factor the equation. z^2+8z=-15 z^2+8z+15=0 (z+3)(z+5)=0 either z+3=0 or z+5=0 So, z=-3 or z=-5 The way I factored it is looked for two numbers that multiplied to give me 15 but added to make 8. 1 and 15 didn't work. 3 and 5 worked.



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How do you solve z2 plus 8z equals -15? - Answers

https://math.answers.com/math-and-arithmetic/How_do_you_solve_z2_plus_8z_equals_-15

Because of the zero property of multiplication we must first set it equal to zero and factor the equation. z^2+8z=-15 z^2+8z+15=0 (z+3)(z+5)=0 either z+3=0 or z+5=0 So, z=-3 or z=-5 The way I factored it is looked for two numbers that multiplied to give me 15 but added to make 8. 1 and 15 didn't work. 3 and 5 worked.



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https://math.answers.com/math-and-arithmetic/How_do_you_solve_z2_plus_8z_equals_-15

How do you solve z2 plus 8z equals -15? - Answers

Because of the zero property of multiplication we must first set it equal to zero and factor the equation. z^2+8z=-15 z^2+8z+15=0 (z+3)(z+5)=0 either z+3=0 or z+5=0 So, z=-3 or z=-5 The way I factored it is looked for two numbers that multiplied to give me 15 but added to make 8. 1 and 15 didn't work. 3 and 5 worked.

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      Because of the zero property of multiplication we must first set it equal to zero and factor the equation. z^2+8z=-15 z^2+8z+15=0 (z+3)(z+5)=0 either z+3=0 or z+5=0 So, z=-3 or z=-5 The way I factored it is looked for two numbers that multiplied to give me 15 but added to make 8. 1 and 15 didn't work. 3 and 5 worked.

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