2022年中考数学专题：整式的乘法与因式分解（二）

$x^2+x^3=x^5$

${(x-y)}^2=x^2-y^2$

${\left(x^2\right)}^3=x^6$

$x^6÷x^3=x^2$

$a^2+a=a^3$

${(-\mathit{ab})}^2=-a{b}^2$

$a^5÷a^2=a^3$

$a^5\cdot a^2=a^{10}$

$3\mathit{mn}-2\mathit{mn}=1$

${\left(m^2{n}^3\right)}^2=m^4{n}^6$

${(-m)}^3\cdot m=m^4$

${(m+n)}^2=m^2+n^2$

${(-a)}^2=-a^2$

$2a^2-a^2=2$

$a^2\cdot a=a^3$

${(a-1)}^2=a^2-1$

$2x^2+3x^3=5x^5$

${(-2x)}^3=-6x^3$

${(x+y)}^2=x^2+y^2$

$(3x+2)(2-3x)=4-9x^2$

$a^2•a^5＝a^{10}$

$（a﹣b{）}^2＝a^2﹣b^2$

$\mathit{（﹣}3a^3{）}^2＝6a^6$

$﹣3a^{2}b+2a^{2}b\mathit{＝﹣}{a}^{2}b$

$\sqrt{2}+\sqrt{3}=\sqrt{5}$

$a^3\cdot a^2={\alpha }^6$

${\left(a^3\right)}^2=a^6$

$a^2-b^2={(a-b)}^2$

$a^6$

$-a^6$

$a^8$

$-a^8$

$|-3|+\tan 45°=-2$

${\left(\mathit{xy}\right)}^5÷{\left(\frac{x}{y}\right)}^5=x^{10}$

${(a-b)}^2=a^2+2\mathit{ab}+b^2$

$x^{3}y-x{y}^3=\mathit{xy}(x+y)(x-y)$

$m^2+m^3=2m^5$

${(-2a^2)}^3=-6a^6$

${(a-b)}^2=a^2-b^2$

$\sqrt{6}÷\sqrt{2}=\sqrt{3}$