Упростить выражение 1). 7(x+8) + (x+8)(x-8) 2). (x-3)(3+x)+(x-3)² 3). (y-5)²-(y+7)² 4). (x+3)(x-3) - x² + 2x. Created by masatri466. algebra-ru

Упростить выражение 1). 7(x+8) + (x+8)(x-8) 2). (x-3)(3+x)+(x-3)² 3). (y-5)²-(y+...

masatri466 @masatri466

August 2022 1 2 Report

Упростить выражение 1). 7(x+8) + (x+8)(x-8) 2). (x-3)(3+x)+(x-3)² 3). (y-5)²-(y+7)² 4). (x+3)(x-3) - x² + 2x

Answers & Comments

Universalka

Verified answer

$\displaystyle\bf\\1)\\\\7(x+8)+(x+8)(x-8)=7x+56+x^{2} -64=x^{2} +7x-8\\\\\\2)\\\\(x-3)(3+x)+(x-3)^{2} =x^{2} -9+x^{2} -6x+9=2x^{2} -6x\\\\\\3)\\\\(y-5)^{2} -(y+7)^{2} =y^{2} -10y+25-(y^{2}+14y+49)=\\\\=y^{2} -10y+25-y^{2} -14y-49=-24y-24\\\\\\4)\\\\(x+3)(x-3)-x^{2} +2x=x^{2} -9-x^{2} +2x=2x-9$

4 votes Thanks 7

neeghers верно

abdullayevxayrullo95 ooo

Answers & Comments

Verified answer

1 6x 6x 0 3 x 3x 4x 12 0 2 64x 16xx0

uprostit vyrazhenie 1 7x 8 x 8x 8 2 x 33 x x 3 3

predstavit v vide mnogochlena raskryt skobki 1 x 2x 2 2 3x y

27x 1x133x 2213 reshit uravnenie

рекомендуемые вопросы

Helpful Links

Helpful Social