2007-05-10 09:21:10 · 14 answers · asked by Jonathan D 2 in Science & Mathematics ➔ Mathematics
15x squared + 2x -8
2007-05-10 09:23:31 · answer #1 · answered by Anonymous · 0⤊ 0⤋
15x^2-10x+12x-8
15x^2+2x-8
its really easy
the formula i like to use is FOIL
(5x+4) (3x-2)
F=First
o=outer
i=inner
l=last
F L F L
(5x+4) (3x-2)
O I I O
Multiply and ull get the ansswer
2007-05-10 09:28:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You can solve it by using F.O.I.L.
(First, Outside, Inside, Last)
(5x+4)(3x-2)
= 5x*3x+ 5x*-2+ 4*3x-8
= 15x² - 10x +12x - 8
= 15x² + 2x - 8
2007-05-10 09:36:26 · answer #3 · answered by edison c d 4 · 0⤊ 0⤋
FOIL
First, Outside, Inside, Last.
First: (5x) (3x) = 15 x^2
Outside: (5x) (-2) = -10x
Inside: (4) (3x) = 12x
Last: (4)(-2) = -8
Put it all together: 15x^2 +2x - 8
2007-05-10 09:30:18 · answer #4 · answered by Jay 7 · 0⤊ 0⤋
( 5x + 4 ) ( 3x - 2 )
= 15x^2 + 12x - 10x - 8
= 15x^2 + 2x - 8.
2007-05-10 09:24:30 · answer #5 · answered by Anonymous · 0⤊ 0⤋
5x (3x-2) + 4 (3x-2)
15x-10x+12x-8
27x-18
2007-05-10 09:31:07 · answer #6 · answered by Aniket G 1 · 0⤊ 0⤋
(5x+4) (3x-2)
FOIL; First, Outer, Inner ,Last
15x^2-10x+12x-8
group like terms
15x^2+2x-8
that is the solution
2007-05-10 09:26:57 · answer #7 · answered by Anonymous · 0⤊ 0⤋
(5X+4)(3X-2) = multiplying each element of first group with each element of secnd group , we get
15X^2 -10X+12X-8 ==> 15X^2 + 2X - 8=0
2007-05-10 09:25:21 · answer #8 · answered by mystic_dementor 2 · 0⤊ 0⤋
Expand:
15X² - 10x + 12x - 8
15x² + 2x - 8
.
2007-05-10 09:24:54 · answer #9 · answered by Robert L 7 · 0⤊ 0⤋
15x^2 + 2x -8
2007-05-10 09:24:20 · answer #10 · answered by dandahamman 2 · 0⤊ 0⤋