Question

Find the following products.
a. (2x-1)(x+3)

b. 3x(5x-11)

c. (x-5)(5x-2)

d. 100(3x-0.5)

Answer 1

a=7x-3
b=15x-33

Answer 2

Thanks. What about c and d ?

Answer 3

a. (2x - 1)(x + 3) =
2x^2 + 6x - x - 3 =
2x^2 + 5x - 3

b. 3x(5x - 11)
15x^2 - 33x

c. (x - 5)(5x - 2)
5x^2 - 2x - 25x + 10 =
5x^2 - 27x + 10

d. 100 (3x - 0.5) =
300x - 50

Answer 4

Thank you! (:

Answer 5

no problem :)

Answer 6

c=-7x-10
d=300x-50

Answer 7

Thanks!

Answer 8

reneebaby...how are you getting your answers for a and c ??

Answer 9

@reneebaby139 ...

Answer 10

a and c require the FOIL method to solve
http://www.algebrahelp.com/lessons/simplifying/foilmethod/

Answer 11

I was using foil, it may be wrong though I had algebra last yr and we haven't done it since then. My teacher called it the rainbow method, bc you distribute everything then add/subtract similar things that you can.
for (x-5)5x-2), I got 5x-2x-10x-10, then I added like terms to get -7x-10