(подобные подчеркнуты одинаковой линией)
а)
5x-2y²+3x+y² = 8x-y²<span>
</span>⁻⁻ ~ ⁻⁻ ~
б)
<span>-a²+a-8a -10a²=-11а</span>²-7а
⁻⁻ ~ ~ ⁻⁻⁻
в)
<span>k³-k²+6k+9k²=k</span>³+8k²+6k<span>
</span>⁻ ·· ~~ ··<span>
</span>г)
<span>y²-4-7y²+3=-6y</span>²-1
≈ ·· ≈ ··<span>
</span>д)
<span>ab-b²a-a²b+ab=2ab-b</span>²a-a²b
≈ ··· ≠≠ ≈<span>
е)
</span><span>5xy²-y²x-9y²x-4xy²=xy</span>²-10y²x
≈ ≈ ··· ···· ≈ ≈
===============================
∛ 5X = 10
( ∛ 5X ) ^ 3 = 10 ^ 3
5X = 1000
X = 200
x²-7x+x²+6x+9= 2x²-x+9
y²-10y+25-5y²+10y= 25-4y²