Question

phan tich thanh nhan tu

a²-b²-4a+4b

Answer 1

ko cần tui giải thì thui tự làm nhé Goodluck ^^

Answer 2

(a-b)(a+b) - 4(a-b)= (a-b)(a+b -4) nhé

Answer 3

\(a^2-b^2-4a+4b\)

\(=\left(a+b\right)\left(a-b\right)-4\left(a-b\right)\)

\(=\left(a+b-4\right)\left(a-b\right)\)

Answer 4

\(a^2-b^2-4a+4\)

\(=\left(a+b\right)\left(a-b\right)-4\left(a-b\right)\)

\(=\left(a+b-4\right)\left(a-b\right)\)

Ai k mk mk k lại!

Answer 5

a^2-b^2-4a+4b

=(a-b)(a+b)-4(a-b)

=(a-b)(a+b-4)