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a^(2) - b^(2) = ( a - b)( a + b)
NB Noter the different signs.
NNB Note the ADDITION of perfect squares ' a^(2) + b^(2) ' does NOT factor.
What else can I help you with?
How do you factor 36v2-w2?
There is a formula for the "difference of squares." In this case, the answer is (6v + w)(6v - w)
How do you factor x squared minus 4y squared?
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.
How do you factor x to the fourth power minus twenty five?
There is a formula for the "difference of squares." In this case, the answer is (x2 - 5)(x2 + 5)
In a difference of squares problem both terms must be squares?
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.
How do you factor 121a2 plus 144b2?
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).
How do you factor 9c2d4-16e2f2?
The "difference of squares" has a formula. (3cd2 + 4ef)(3cd2 - 4ef)
What is the factor 121x2 - 1?
The "difference of squares" has a formula. (11x + 1)(11x - 1)
Factor 16x2 - 9?
There is a formula for the "difference of squares." In this case, the answer is (4x + 3)(4x - 3)
How do you factor 9m2-169n2?
There is a formula for the "difference of squares." In this case, the answer is (3m + 13n)(3m - 13n)
What is the factor of 25b2 - 196c2?
There is a formula for the "difference of squares." In this case, the answer is (5b - 14c)(5b + 14c)
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 9A2-B2?
There is a formula for the "difference of squares." In this case, the answer is (3A + B)(3A - B)
Factor x2 - 100?
x^(2) - 100 => x^(20 - 10^(2) => ( x - 10)(x + 10) Done!!!!!
How do you factor x2-1?
There's a formula for the "difference of squares." (x + 1)(x - 1)
