<span>|у+2|=7
у=7-2
у=5
-у+2=7
у=-9</span>
-32*sqrt(2)*sin(945) = -32*sqrt(2)*sin(2*360 + 225) = -32*sqrt(2)*sin(225) = -32*sqrt(2)*sin(180+45) = -32*sqrt(2)*(-sin(45)) = 32*sqrt(2)*sqrt(2)/2 = 32
A) (a+2)(x+6)=ax+2x+6a+12
b) (x-3)(a-5)=ax-3a-5x+15
c) (a+4)(3a-2)=3a^2-2a+12a-8=3a^2+10a-8
d) (4-b)(b+3)=4b+12-b^2-3b=12-b^2+b
e) (3-7y)(2y-8)=62y-24-14y^2
An=A1+(n-1)d
A26=18+(26-1)*(-0.6)=18+(-15)=3
<span>1) 4x+5(3-2x)=5-11x
4x+15-10x=5-11x
-6x+15=5-11x
-6x+11x=5-15
5x=-10
x=-10:2
x= -5
2) 14(2y-3)-5(y+4)=2(3y+5)+5y
28y-42-5y-20=6y+10+5y
23y-62=11y+10
23y-11y=10+62
12y=72
y=72:12
y=6</span>