Toán Lớp 8: Phân tích thành nhân tử a/7x^2-15x+8
B/ -6x^2+9x-3
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Toán Lớp 8: Phân tích thành nhân tử a/7x^2-15x+8
B/ -6x^2+9x-3
Comments ( 2 )
=(7x^2-7x)-(8x-8)
=7x(x-1)-8(x-1)
=(x-1)(7x-8)