Yahoo Answers: Answers and Comments for Please help solve these math problems? [Mathematics]
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From Cardenal
enUS
Sun, 08 Dec 2019 10:13:40 +0000
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Yahoo Answers: Answers and Comments for Please help solve these math problems? [Mathematics]
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https://answers.yahoo.com/question/index?qid=20191208101340AA3dCiu
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From Krishnamurthy: 1.
(a + 6b) (a  6b) = a^2  36b^2
2.
(x^2 ...
https://answers.yahoo.com/question/index?qid=20191208101340AA3dCiu
https://answers.yahoo.com/question/index?qid=20191208101340AA3dCiu
Sun, 08 Dec 2019 10:54:44 +0000
1.
(a + 6b) (a  6b) = a^2  36b^2
2.
(x^2  4) (x^2 + 4) = x^4  16
3.
(a  6b) (a + 6b) = a^2  36b^2
4.
(8  y) ( 8 + y) = 64  y^2
5.
(7x + 2y) (7x  2y) = 49x^2  4y^2

From TomV: All straightforward polynomial multiplication ...
https://answers.yahoo.com/question/index?qid=20191208101340AA3dCiu
https://answers.yahoo.com/question/index?qid=20191208101340AA3dCiu
Sun, 08 Dec 2019 10:21:37 +0000
All straightforward polynomial multiplication of the sum and difference:
(a+b)(ab) = a(ab) + b(ab) = a²  ab + ab  b² = a²b²1) (a+6b)(a6b) = a²  36b²2) (x²  4)(x² + 4) = x⁴  163) (a6b)(a+6b) = a²  36b²4) (8y)(8+y) = 64  y²5) (7x+2y)(7x2y) = 49x²  4y²
The product of the sum and difference of two terms reduces to the difference of the squares of the terms.