stellaglenn205
25.02.2021 •
Mathematics
Find the missing value to complete the square.
x^2 + 8x + __ = 0
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Ответ:
−x^2 − 8x
Step-by-step explanation:
Lets say y is the missing value
Add -x^2 to both sides.
x^2+8x+y+−x^2=0+−x^2
8x+y=−x^2
Add -8x to both sides.
8x + y + −8x = −x^2 + −8x
y = −x^2 − 8x
So the whole equation would be
x^2 + 8x + −x^2 − 8x = 0
Ответ:
Ответ:
the answer is A
Step-by-step explanation: