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What is the formula to a factor a difference of perfect squares?
Wiki User
∙ 13y ago
a2 - b2 = (a + b)(a - b).
Wiki User
∙ 13y ago
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How do you factor 36v2-w2?
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It is the difference of two squares which is: (x+2y)(x-2y)
Simplify a4 - 81?
That looks simple enough for me; but if you want to factor it, you can use the formula for the difference of two squares.
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perfect * * * * * Not strictly. they could both be multiples of sqaures. For example, factorise 3x3 - 48x. Neither term is a square but they do become squares when the common factor, 3x, is separated out. Also, when rationalising surds, one would use the difference of two squares but (at least) one of the terms is not a square.
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There is a formula for the difference of two squares. The sum of two squares doesn't factor.
How do you use the difference of two squares?
The formula to factor the difference of two squares, a2 - b2, is (a + b)(a - b).
What is the factor 121x2 - 1?
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The "difference of squares" has a formula. (3cd2 + 4ef)(3cd2 - 4ef)
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There is a formula for the "difference of squares." In this case, the answer is (3A + B)(3A - B)
How do you factor y2-81?
There is a formula for the "difference of squares." In this case, the answer is (y + 9)(y - 9)
Factor x2 - 100?
There is a formula for the "difference of squares." In this case, the answer is (x + 10)(x - 10)
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There is a formula for the "difference of squares." In this case, the answer is (2x - 3)(2x + 3)
Factor 16x2 - 9?
There is a formula for the "difference of squares." In this case, the answer is (4x + 3)(4x - 3)
What is the factor of 25c2 - 196d2?
There is a formula for the "difference of squares." In this case, the answer is (5c - 14d)(5c + 14d)
How do you factor out 4x2-25?
There is a formula for the "difference of squares." In this case, the answer is (2x + 5)(2x - 5)
How do you factor x2-1?
There's a formula for the "difference of squares." (x + 1)(x - 1)
