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kobusy [5.1K]
3 years ago
12

Find the values of a and b such that x^2+2x-7=(x+a)^2+b

Mathematics
1 answer:
nevsk [136]3 years ago
4 0

Answer:

a = 1, b = -8

Step-by-step explanation:

you need complete the square to get a and b:

x^2+2x(+1)-7(-1)

by adding and subtracting 1 you aren’t changing the equation because 1-1=0

then u could simplify the equation to

(x+1)^2 - 8 to get a=1 and b=-8

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Answer:

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