Question

几道初一数学题，直接要答案，不要过程

因式分解：
(1)0.01m^2+0.1m+0.25n^2
(2)0.09a^2-0.12a+0.04
(3)mx^2+2mx+m
(4)2x^2-16x+32
(5)3x^3-12x^2y+12xy^2
(6)a^4+14a^3+49a^2
(7)-16+8m-m^2
(8)-14a^2+7a^3+7a

Answer 1

(1)0.01m^2+0.1m+0.25n^2=0.01(m+5)²
(2)0.09a^2-0.12a+0.04=0.01(3a-2)²

(3)mx^2+2mx+m=m(x+1)²
(4)2x^2-16x+32=2(x-4)²
(5)3x^3-12x^2y+12xy^2=3x(x-2y)²
(6)a^4+14a^3+49a^2=a²(a+7)²
(7)-16+8m-m^2=-(m-4)²
(8)-14a^2+7a^3+7a=7a(a-1)²

Answer 2

第1题抄写有错
1)0.01m^2+0.1mn+0.25n^2=0.01(m+5n)²
(2)0.09a^2-0.12a+0.04=0.01(3a-2)²

(3)mx^2+2mx+m=m(x+1)²
(4)2x^2-16x+32=2(x-4)²
(5)3x^3-12x^2y+12xy^2=3x(x-2y)²
(6)a^4+14a^3+49a^2=a²(a+7)²
(7)-16+8m-m^2=-(m-4)²
(8)-14a^2+7a^3+7a=7a(a-1)²