1.(5a - 12b)(5a + 12b)= 2.(6a + 5b)²= 3.(8a - b)²= 4.(а + 3)(а² - 3а +9)= 5. (b - 2)(b²+ 2b +4)= 6.(- a² + 9)(a² + 9)= 7.(a⁸ + b ⁸)(a⁴ + b ⁴)(a⁴- b ⁴)=. Created by mashazinamr. algebra-ru

1.(5a - 12b)(5a + 12b)= 2.(6a + 5b)²= 3.(8a - b)²= 4.(а + 3)(а²

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1.(5a - 12b)(5a + 12b)=
2.(6a + 5b)²=
3.(8a - b)²=
4.(а + 3)(а² - 3а +9)=
5. (b - 2)(b²+ 2b +4)=
6.(- a² + 9)(a² + 9)=
7.(a⁸ + b ⁸)(a⁴ + b ⁴)(a⁴- b ⁴)=

Answers & Comments

SSlippy 1)(5a-12b)(5a+12b)= (5a-12b)*5a+(5a-12b)*12b= 25a²-60ab+60ab-144b²=25a-144b²2)(6а+5b)²= 6²a²+5²b²3)(8a-b)²=8²a²-b²4)(а + 3)(а² - 3а +9)= (а+3)*a²+(a+3)*(-3a)+(a+3)*9=a³+3a²-3a²-9a+9a+27=a³+275) (b - 2)(b²+ 2b +4)=(b-2)*b²+(b-2)*2b+(b-2)*4=b³-2b²+2b³+4b+4b-8=3b³-2b²+8b6.(- a² + 9)(a² + 9)=(-a²+9)*a²+(-a²+9)*9=-a⁴+9a²-9a+81=-a⁴+81

2 votes Thanks 2

SSlippy (5a-12b)(5a+12b)= (5a-12b)*5a+(5a-12b)*12b= 25a²-60ab+60ab-144b²=25a-144b²

SSlippy Наверное я не права

prosto reshit 15a 12b5a 12b 26a 5b 38a b 4a 3a

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Answers & Comments

prosto reshit 15a 12b5a 12b 26a 5b 38a b 4a 3a

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