Question

Помогте пж срочно!!!

Answer 1

Ответ:

1) $x^{2}$-6x+9-8 = $x^{2}$-6x+1

2) 12x-$x^{2}$-12x-36 = -$x^{2}$-36

3) 4$a^{2}$-12ab+9$b^{2}$-4$a^{2}$+24ab = 12ab+9$b^{2}$

4) 4$x^{2}$-12xy+9$y^{2}$+16$x^{2}$+16xy+4$y^{2}$ = 20$x^{2}$+4xy+13$y^{2}$

5) $x^{2}$-10x+25-$x^{2}$-3x = -13x+25

6) 36$a^{2}$-12ab+$b^{2}$-36$a^{2}$-18ab+4ab+2$b^{2}$ = -26ab+3$b^{2}$

7) 3x(25+10x+$x^{2}$)-x(9$x^{2}$-36x+36) = 75x+30$x^{2}$+3$x^{3}$-9$x^{3}$+36$x^{2}$-36x = 39x+66$x^{2}$-6$x^{3}$

8) $x^{2}$-4x+4+$x^{2}$-1 = 2$x^{2}$-4x+3

9) 9$a^{2}$-4$b^{2}$-$a^{2}$-6ab-9$b^{2}$ = 8$a^{2}$-13$b^{2}$-6ab

10) $y^{2}$+3y-4y-12+$y^{2}$+2y+1-49+$y^{2}$ = 3$y^{2}$+y-60

Объяснение: