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4.2 Expansion Using Algebraic Identities

English 10 Public

4.2 Expansion Using Algebraic Identities

Study Slideshow

(x+7)^2

x^2+14x+49

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(3a-2b)^2

9a^2-12ab+4b^2

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(2x+3y)(2x-3y)

4x^2-9y^2

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(p-4)^2

p^2-8p+16

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(x+5)(x-5)

x^2-25

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(2x+1)^2

4x^2+4x+1

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(x-6)^2

x^2-12x+36

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(5a+2b)(5a-2b)

25a^2-4b^2

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199^2

39601

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302×298

90000-4=89996

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