3 years ago

Factor completely: 4x²-49=

Mathematics

1 answer:

natima [27]3 years ago

6 0

$4x^2-49$

Use the Difference of Two Squares Formula, $x^2-y^2=(x+y)(x-y)$

If x² = 4x², then x = √4x², x = 2x

If y² = 49, then y = √49, y = 7

We know both x and y, straight to formula.

$x^2-y^2=(x+y)(x-y)\\4x^2-49=(2x+7)(2x-7)$

Therefore, the factored form of 4x²-49 is (2x+7)(2x-7)

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deff fn [24]

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