3 years ago

What number must you add to complete the square x^2+10x=8 A. 25 B. 5 C. 15 D. 10

1 answer:

8 0

To complete the square you take the coefficient of the 'b' term (10), divide it by 2 (10/2), then square it (5^2 = 25). This is the number you add.
Letter C 25

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