Ta có: \(3a\left(a-2b\right)+6b\left(2b-a\right)\)
\(=3a\left(a-2b\right)-6b\left(a-2b\right)\)
\(=3\left(a-2b\right)\left(a-2b\right)\)
\(=3\left(a-2b\right)^2\)
3a(a-2b)+6b(2b-a)
=3a(a-2b)-6b(a-2b
=(a-2b)(3a-6b)
=3(a-2b)(a-3b)
3a(a - 2b) + 6b(2b - a)
= 3a(a - 2b) - 6b(a - 2b)
= 3(a - 2b)(a - 2b)
= 3(a - 2b)2
xin loi ban nhe ! minh lam sai mmat roi ban tham khao bai cua ban Dang nha
3a( a - 2b ) + 6b( 2b - a )
= 3a( a - 2b ) - 6b( a - 2b )
= ( a - 2b )( 3a - 6b )
= 3( a - 2b )( a - 2b )
= 3( a - 2b )2
Trả lời :
\(3a\left(a-2b\right)+6b\left(2b-a\right)\)
\(=3a\left(a-2b\right)-6b\left(a-2b\right)\)
\(=3\left(a-2b\right)\left(a-2b\right)\)
\(=3\left(a-2b\right)^2\)
3a(a - 2b) + 6b(2b - a)
= 3a(a - 2b) - 6b(a - 2b)
= 3(a - 2b)(a - 2b)
= 6(a - b)
= (3 + 3)(a - b)
= (3a - 3b)
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