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Q: Factor 81x plus 9x

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sqrt(81x2)=9x*sqrt=square root of

3x+21x+9x=33x. Break it apart. The factor of x is x and the factors of 33 are 3 and 11. Therefore, the factors of 3x+21x+9x are 3, 11, and x.

9x + 1x = 10x.

x+5+3x-7+9x+3-4x Collect like terms: 9x+1

81x2 + 72x + 16 = 81x2 + 36x + 36x + 16 = 9x(9x + 4) + 4(9x + 4) = (9x + 4)2

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If you mean (9x-8y)(9x+8y) then it is 81x^2 minus 64y^2

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5x2 + 9x + 13 has no real factors.

3x2 + 9x 3x(x + 3) -------------

sqrt(81x2)=9x*sqrt=square root of

(5x+4)(9x+9) FOIL First (5x*9x=45x**2) Outside (5x*9=45x) Inside (4*9x=36x) Last (4*9=36) 45x**2+45x+36x+36 45x**2+81x+36 9(5x**2+9x+4x)

9x(x2+3x-10)

10 + 9x

(2x + 1)(x + 4)

3x+21x+9x=33x. Break it apart. The factor of x is x and the factors of 33 are 3 and 11. Therefore, the factors of 3x+21x+9x are 3, 11, and x.

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