1. (а+b)^2=a^2+2ab+b^2
2.(m-n)^2=m^2-2mn+n^2
3.(x+3)^2=x^2+6X+9
4.(5-a)^2=25-10a+a^2
5.(c-1/3)^2=c^2-2/3c+1/9
6.(2+3x)^2=4+12x+9x^2
7.(3x-1/3y)^2=9x^2-2xy+1/9y^2
8.(-a-b)^2=a^+2ab+b
Упростите выражение:
1.14а+(а-7)^2=14a+a^2-14a+49=a^2+49
2.9х^2-(3х-2)^2=9x^2-9x^2-12x+4=4-12x
1. (а+b)^2=a^2+2ab+b^2
2.(m-n)^2=m^2-2mn+n^2
3.(x+3)^2=x^2+6X+9
4.(5-a)^2=25-10a+a^2
5.(c-1/3)^2=c^2-2/3c+1/9
6.(2+3x)^2=4+12x+9x^2
7.(3x-1/3y)^2=9x^2-2xy+1/9y^2
8.(-a-b)^2=a^+2ab+b
Упростите выражение:
1.14а+(а-7)^2=14a+a^2-14a+49=a^2+49
2.9х^2-(3х-2)^2=9x^2-9x^2-12x+4=4-12x