考點(diǎn):整式的混合運(yùn)算
專(zhuān)題:
分析:(1)根據(jù)積的乘方法則進(jìn)行計(jì)算即可;
(2)先根據(jù)積的乘方進(jìn)行計(jì)算,再求出即可;
(3)根據(jù)多項(xiàng)式乘以多項(xiàng)式法則進(jìn)行計(jì)算即可;
(4)根據(jù)多項(xiàng)式乘以單項(xiàng)式法則進(jìn)行計(jì)算即可;
(5)先算乘方,再算乘除;
(6)根據(jù)完全平方公式進(jìn)行計(jì)算即可;
(7)先變形,根據(jù)平方差公式進(jìn)行計(jì)算,最后求出即可;
(8)先算乘法,再合并同類(lèi)項(xiàng)即可.
解答:解:(1)(2a
3b)
2 =4a
6b
2;
(2)
()100×2
101=(
×2)
100×2
=1×2
=2;
(3)(x+3y)(x-2y)
=x
2-2xy+3xy-6y
2=x
2+xy-6y
2;
(4)3x(3x
2-4x+1)
=9x
3-12x
2+3x;
(5)(-a)
3•(ab
2)
2÷(-a
2b)
=(-a
3)•(a
2b
4)÷(-a
2b)
=a
4b
3;
(6)(2x-3y)
2=(2x)
2-2•2x•3y+(3y)
2=4x
2-12xy+9y
2;
(7)2014×2016-2015
2=(2015-1)×(2015+1)-2015
2=2015
2-1-2015
2=-1;
(8)(a+3)(a-3)+(a+2)(a-1)
=a
2-9+a
2-a+2a-2
=2a
2+a-11.
點(diǎn)評(píng):本題考查了平方差公式,積的乘方,完全平方公式,整式的混合運(yùn)算的應(yīng)用,主要考查學(xué)生的計(jì)算能力和化簡(jiǎn)能力.