3 years ago

Rewrite the equation by completing the square. x2 + 3x – 28 = 0 (x + )2 =

Mathematics

1 answer:

stepladder [879]3 years ago

8 0

Step-by-step explanation:

x2 + 3x – 28 = 0

x^2+7x-4x-28=0

x (x+7)-4(x+7)=0

x-4)(x+7)=0

x=4

x=-7

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