Выполни умножение пж. Created by avataria1982. algebra-ru

Ответ:1)(x-9)(x-8)= -8x-9x+72= -17x+722)(3y+2)(2y-3)= -9y+4y-6=-5y-63)(-5a+b)(2b+a)= -10ab-5+2+ab= -9ab-5+24)(4+x)(6x+7)= 24+28+6+7x= 24+34+7x5)(9a+1)(2-2a+5)= 18-18+45a+2-2a+5= 18-16+43a+5

Выполни умножение пж...

avataria1982 @avataria1982

July 2022 1 6 Report

Выполни умножение пж

Answers & Comments

alexleongr

Ответ:

1)(x-9)(x-8)= $x^{2}$ -8x-9x+72= $x^{2}$ -17x+72

2)(3y+2)(2y-3)= $6y^{2}$ -9y+4y-6= $6y^{2}$ -5y-6

3)(-5a+b)(2b+a)= -10ab-5 $a^{2}$ +2 $b^{2}$ +ab= -9ab-5 $a^{2}$ +2 $b^{2}$

4)(4 $x^{2}$ +x)(6x+7)= 24 $x^{3}$ +28 $x^{2}$ +6 $x^{2}$ +7x= 24 $x^{3}$ +34 $x^{2}$ +7x

5)(9a+1)(2 $a^{2}$ -2a+5)= 18 $a^{3}$ -18 $a^{2}$ +45a+2 $a^{2}$ -2a+5= 18 $a^{3}$ -16 $a^{2}$ +43a+5

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