Math
posted by Ms.Ellis on .
Help Please:
Please Help
1.Essay:Show all work,Find the Product.
(x^22)(x^34x+9)
2.Find the product:(2x4y)(2x+4y)
4.Find the product:(8x3y)^2
a.64x^2+9y^2
b.64x^29y^2
c.64x^248xy+9y^2
d.64x^248xy9y^2 (b)

(x^2 2)(x^3  4x + 9)
(x^2) (x^3) = x^5
(x^2) (4x) = 4x^3
(x^2) (9) = 9x^2
(2) (x^3) = 2x^3
(2) (4x) = 8x
(2) (9) = 18
Now, we add the righthand sides of the equeal sign.
x^5  4x^3  2x^3 + 9x^2 + 8x  18
x^5  6x^3 + 9x^2 + 8x  18
There I did the 1st one for u. Try and do the rest. 
(2x4y)(2x+4y)
4x^2 + 8xy  8xy  16y^2
4x^2  16y2 
(8x3y)^2
(8x  3y) (8x  3y)
Try finish it from there... 
Thanks Priya and Mithra I appreciate your help.