<span><span>(<span><span>a2</span>−<span>b2</span>+ab−2</span>)</span><span>(<span><span>a2</span>−<span>b2</span>−ab−2</span>)</span>−<span><span>(<span><span>a2</span>−<span>b2</span>−2</span>)</span>2</span>=</span>Возведение в степень:<span><span>(<span><span>a2</span>−<span>b2</span>+ab−2</span>)</span><span>(<span><span>a2</span>−<span>b2</span>−ab−2</span>)</span>−<span>(<span><span>a4</span>−2<span>a2</span><span>b2</span>−4<span>a2</span>+<span>b4</span>+4<span>b2</span>+4</span>)</span>=</span>Раскрытие скобок:<span><span><span>a4</span>+<span>a2</span><span>(<span>−1</span>)</span><span>b2</span>+<span>a3</span><span>(<span>−1</span>)</span>b+<span>a2</span><span>(<span>−2</span>)</span>−<span>b2</span><span>a2</span>+<span>b4</span>+<span>b3</span>a+2<span>b2</span>+<span>a3</span>b+a<span>b3</span><span>(<span>−1</span>)</span></span><span>+<span>a2</span><span>b2</span><span>(<span>−1</span>)</span>+ab<span>(<span>−2</span>)</span>−2<span>a2</span>+2<span>b2</span>+2ab+4−<span>a4</span>+2<span>a2</span><span>b2</span>+4<span>a2</span>−<span>b4</span>−4<span>b2</span>−4=</span></span><span><span>a2</span><span>(<span>−1</span>)</span><span>b2</span>−<span>b2</span><span>a2</span>+<span>b3</span>a+a<span>b3</span><span>(<span>−1</span>)</span>+<span>a2</span><span>b2</span>=</span><span>−<span>a2</span><span>b2</span>−<span>b2</span><span>a2</span>+<span>b3</span>a−a<span>b3</span>+<span>a2</span><span>b2</span>=</span>−a2b2
А) x=-12
б) х=4/5
в) х=9/7
г) х=-25/3
д) х=1/3
е) х=2.4
<span>1)1,8а</span>⁵<span>b</span>⁷<span>a</span>¹⁰ - это одночлен стандартного вида.<span>
2)14/5cd</span>⁵<span>(8/7c</span>⁴<span>)=16/5*с</span>⁵d⁵<span>
3)2.8xt</span>⁵<span>(-0.5x</span>²<span>t)= -1,4*x</span>³t⁶<span>
4)-b</span>⁵<span>(-b</span>⁸<span>)(-8) = - 8b</span>¹³<span>
5)1.4a</span>⁶<span>t(-3/2at</span>⁸<span>) = -2,1a</span>⁷t⁹<span>
6)20bc</span>⁸<span>(-0.05b</span>¹⁰<span>)= -b</span>¹¹c⁸