Step-by-step explanation:
To complete the square, take half of the second coefficient, square it, then add the result to both sides.
(-8/2)² = (-4)² = 16
x² − 8x + 16 = 9 + 16
Solving:
(x − 4)² = 25
x − 4 = ±5
x = 4 ± 5
x = -1 or 9
the answer will become 10%
Answer:
=−5r+5
Let's simplify step-by-step.
−5−5r+10
=−5+−5r+10
Combine Like Terms:
=(−5r)+(−5+10)
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