Question

factories the expression by grouping
1) xy +4x+2y+8
2) ab-3a+2b-6
3) ac-ad+bc-bd
4) 6+2y+3×+×y
5) ab-ad-bc+cd​

Answer 1

Answer:

1) xy +4x+2y+8

= x(y+4)+2(y+4)

= (y+4)(x+2)

2) ab-3a+2b-6

= a(b-3)+2(b-3)

= (b-3)(a+2)

3) ac-ad+bc-bd

= a(c-d)+b(c-d)

= (c-d)(a+b)

4) 6+2y+3×+×y

= 2(3+2y)+x(3+y)

= (3+2y)(2+x)

5) ab-ad-bc+cd

= a(b-d)-c(b-d)

= (b-d)(a-c)

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Answer 2

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