math help?

Question

Heres the problem:
Peform the indicated operations. Express the answers in simplest form. Assume that no denominators is zero.
(5x-3)(4x+3)
I think that it's already in its simplest form. Any solutions?

Answer 1

The indicated operation here is multiplication: multiply the two binomials together.

(5x-3) * (4x+3)
20x^2 + 15x - 12x - 9
20x^2 + 3x - 9.

I think that's where you are supposed to go. Good luck.

Answer 2

You need to multiply the two polynomials together using the FOIL Method [First, outside, inside last].
1. Multiply the first term in each set of parentheses
5x times 4x= 20(x^2), or twenty x squared
2. Multiply the outside terms together
5x times 3= 15x
3. Multiply the inside terms together
-3 times 4x= -12x (don't forget to include negative signs,
(5x-3) is equal to (5x+ -3)
4. Multiply the last terms together
-3 times 3= -9
5. Add everything together
20x^2 +15x+ -12x+ -9
6. Combine like terms
20x^2 +3x-9

Answer 3

x = 3/5 or -3/4

Answer 4

the people after the first are wrong. You have it in the simplest factored form.

then just set each part to zero and solve. youll get 3/5 and -3/4 for X.

Answer 5

(F)irst
(O)utside
(I)nside
(L)ast

FOIL!!!

This means we take 5x * 4x, the first two terms (20x^2), then the outside terms, 5x * 3 (20x^2 +15x), then inside, -3 * 4x (20x^2 + 15x -12x), and finally the last terms, -3 * 3, 20x^2 +15x - 12x - 9, or

20x^2 + 3x - 9

This is the equation in it's simplest form.

Answer 6

(5x-3)(4x+3)
20x^2 (15x-12x)-9
20x^2 +3x-9

Answer 7

4 (2x+3)

Answer 8

20x^2+8x-9