m^2-8m+( )^2=( )^2

拉一人2022-10-04 11:39:543条回答

m^2-8m+( )^2=( )^2
(x^2+1)(x^2-1)-15
15x^2-14xy-8y^2

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h375192170 共回答了24个问题 | 采纳率87.5%: m^2-8m+(4)^2=(m-4)^2
(x^2+1)(x^2-1)-15=x^4-16
15x^2-14xy-8y^2=(3x-4y)(5x+2y); 1年前

cb5o 共回答了111个问题 | 采纳率: 1.括号内依次填
4
m-4
2.(x^2+1)(x^2-1)-15=(x^2+4)(x^2-4)
3.15x^2-14xy-8y^2=(3x-4y)(5x+2y); 1年前

4x^2-y^2=x^2+x+1/4=4a^7-a^5=3a(m-n)+2b(n-m)=4mx^2-8m^2x+4m^3 4x^2-y^2= x^2+x+1/4= 4a^7-a^5= 3a(m-n)+2b(n-m)= 4mx^2-8m^2x+4m^3= x^3y-xy^3= 因式分解, 2x-7-1/7x^2= x^4-16= (x-2y)^2-14(x-2y)+49= (x-y)^3+4(y-x)= (x1+x2)^2-4x1-x2= hua13271年前1: zerojun 共回答了26个问题 | 采纳率96.2%

4x^2-y^2=(2x+y)(2x-y)x^2+x+1/4=(x+1/2)^24a^7-a^5= a^5(2a+1)(2a-1)3a(m-n)+2b(n-m)= (3a-2b)(m-n)4mx^2-8m^2x+4m^3=4m(x-m)^2 x^3y-xy^3= xy(x+y)(x-y)因式分解,2x-7-1/7x^2=-(x^2-14x+49)/7=-(x-7)^2/7 x^4-16= ...

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