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valina [46]
2 years ago
8

15 POINTS AND BRAINLIEST JUST HELP ME PLZZZZZ 4x^2 + 28x + 49 = 0 Rewrite equation (x + __ )^2 = __

Mathematics
2 answers:
TEA [102]2 years ago
7 0

Answer:

\boxed{(x+7)^2 =-3x^2-14x}

Step-by-step explanation:

4x^2 + 28x + 49 = 0

\sf Subtract \ 3x^2 \ and \ 14x \ from \ both \ sides.

4x^2 + 28x + 49 -3x^2-14x= 0-3x^2-14x

x^2 + 14x + 49 = -3x^2-14x

\sf Factor \ left \ side \ of \ the \ equation.

(x+7)^2 =-3x^2-14x

marin [14]2 years ago
4 0

Answer:

(x+7)² = -3x² -14x

Step-by-step explanation:

4x^2 + 28x + 49 = 0

Subtract 3x² and 14x from each sides.

x^2 + 14x + 49 = -3x² -14x

Next step will be factoring.

(x+7)² = -3x² -14x

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