Answered

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p^2+2p-63=0
solve by completing the square

Sagot :

sameermahara

Step-by-step explanation:

p^2+2p=63

p^2+2p+1^2=63+1^2

p^2+2p+1=64

(p+1)^2=64

p+1=8

p=8-1

p=7

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