3 years ago

X^2+4x=15 complete the square

Mathematics

1 answer:

Lady_Fox [76]3 years ago

6 0

Answer:

Step-by-step explanation:

x^2 + 4x = 15.....take half of ur x term, then square it, then add to both sides

x^2 + 4x + 4 = 15 + 4

(x + 2)^2 = 19

sqrt (x + 2)^2 = sqrt 19

x + 2 = sqrt 19

x = -2 (+ - ) sqrt 19

so x = -2 + sqrt 19 or x = -2 - sqrt 19

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FromTheMoon [43]

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AB = $\sqrt{34}$

Step-by-step explanation:

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4 years ago

X^2+4x=15 complete the square​

X^2+4x=15 complete the square