Question

Q1]Expand (m+4)(m+8) * * m2+12m+32 m2+32m+64 Ο Ο Ο Ο m2+32m+216 O + m2+22m+64​

Answer 1

Answer:

You can factor out the minus sign:

 

(-x - y)2 = [(-1)(x + y)]2 = (-1)2(x + y)2 = (1)(x2 + 2xy + y2)

 

Or you can do it this way:

 

(-x - y)2 = [(-x) + (-y)]2 = (-x)2 + 2(-x)(-y) + (-y)2 = x2 + 2xy + y2

 

And yet another way to do it, if you want to use the (a - b)2 formula:

 

(-x - y)2 = [(-x) - y]2 = (-x)2 - 2(-x)(y) + (-y)2 = x2 + 2xy + y2