If 4x^2 - 100 = 0 then the roots of the equation are

2 answers:

8 0

4x² - 100 = 0
 + 100 + 100
 4x² = 100
 4 4
 x² = 25
 x = +5
4(5)² - 100 = 0
4(25) - 100 = 0
100 - 100 = 0
 0 = 0

4(-5)² - 100 = 0
4(25) - 100 = 0
 100 - 100 = 0
 0 = 0

The roots of the equation is positive or negative 5.

Alex17521 [72]3 years ago

6 0

4x^2-100=0
4x^2=100
x^2=100/4
x^2=-25
x=5 or x=-5

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