Question

factor 2x^2+5x-3

Answer 1

(2 x-1) (x+3)

Answer 2

thas the answer XD

Answer 3

How did you get that?

Answer 4

I useed this aronym called FOIL k

Answer 5

then i combined like terms

Answer 6

but you can't use FOIL on something that isn't already factored or in parenthesis

Answer 7

tht is tru but i put them in parenthesis

Answer 8

but how did you do that with only 3 numbers XD

Answer 9

(2x^2)+(5x-3) like this

Answer 10

then i did the factoring by using FOIL

Answer 11

if you foiled that you would get 10x^3-6x^2 -.-

Answer 12

2x^2 - 5x - 3

First multiply the coefficient of the first and last term and try to find a sum of that number which will equal the middle term.

2 x -3 = -6

What are the products of -6?

1 x (-6) = -6
2 x (-3) = -6
-1 x 6 = -6
-2 x 3 = -6
Which of these two products when added will equal -5?

1 + (-6) = -5

Replace the middle term with these two numbers in the equation.

2x^2 + 1x - 6x - 3

Now factor using the grouping method.

(2x^2 + 1x) + (-6x + 3)

Factor out your common factors

x(2x + 1) -3(2x+1)

Which will leave you with:

(x - 3) (2x + 1)

You can test you answer by using the FOIL method:

x * 2x * x * 1 + (-3) * 2x * (-3) * 1

You will arrive back at your original answer 2x^2 - 5x - 3, meaning

(x - 3) (2x + 1) is correct.

Answer 13

here this is what i did ok XD

Answer 14

can i get a medal lol after i typed all that

Answer 15

2x^2 + 5x - 3
a = 2, b = 5, c = -3
AC Method:
a * c = 2 * (-3) = -6
What two factors of -6 add to +5 (the b-value)?
+6 and -1 add to +5 and multiply to -6
2x^2 + 5x - 3 = 2x^2 + 6x - 1x - 3
2x(x + 3) - 1(x + 3)
(2x-1)(x+3)

Answer 16

Thanks :) @aum

Answer 17

You are welcome.