1)(4m+3x)^2
сейчас буду над остальными думать)))
25m²-10mn³+n⁶ = (5m - n³)² = (5m-n³)(5m-n³)<span>
4n³ ₓ 0,3n⁵ = 1,2</span>³⁺⁵ = 1,2n⁸<span>
x(2y-3x)-y(2x-4y) = 2xy - 3x</span>² - 2xy + 4y² = 4y² - 3x²<span>
(xy-3y)+(xa-3a) = y</span>(x-3) + a(x-3) = (x-3)(y+a)
<span>
(x-1)(x+1)-x(x-2)=0
x</span>² - 1- x² + 2x= 0
<span> 2x = 1
x = 1 : 2
x = 0,5
(x²-1²) </span>· (x-1)(x+1) = (x²-1²) · (x²-1²) = (x²-1)²
<span>1,5(a</span>²<span>b)</span>³<span> (-6 2/3ab</span>⁴<span>)=-3/2*20/3*a</span>⁷<span>*b</span>⁷<span>=
- 40 a</span>⁷<span>b</span><span>⁷</span>
<span>3 1/7(-1.4a</span>³<span>b) (ab</span>³<span>)</span>²<span>=
22/7*14/10* a</span>⁵<span>*b</span>⁷<span>=4,4a</span>⁵<span>b</span><span>⁷</span>