hannahnesbitt0901 hannahnesbitt0901

11-12-2020
Mathematics

contestada

HELP ASAP!!!

Solve the following quadratic equation for all values of x in simplest form.
3(x + 8)2 – 20 = 28

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surjithayer10 surjithayer10

11-12-2020

Answer:

Step-by-step explanation:

3(x+8)²-20=28

3(x+8)²=28+20

divide by 3

(x+8)²=48/3=16

x+8=±4

either x+8=4

x=4-8=-4

x=-4

or x+8=-4

x=-4-8=-12

x=-12

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