In math terms.
2006-12-17 01:29:02 · 13 answers · asked by Miz Jamie 1 in Science & Mathematics ➔ Mathematics
(3x - 2y)(7x -4+3y)
21x^2 - 14xy - 12x + 8y + 9xy - 6y^2
21x^2 - 12x - 5xy +8y - 6y^2
2006-12-17 01:34:00 · answer #1 · answered by Tom :: Athier than Thou 6 · 0⤊ 0⤋
First ascertain to FOIL the parentheses: 3(a million+3y)(4-y) = 3((a million)(4) + (a million)(-y) + (3y)(4) + (3y)(-y)) = 3(4 - y + 12y - 3y^2+ = 3(-3y^2 -11y + 4) = -9y^2 + 33y + 36 (3y - 2)(3y - 5) = (3y)(3y) + (3y)(-5) + (-2)(3y) + (-2)(-5) = 9y^2 - 15y - 6y + 10 = 9y^2 - 21y + 10 So now it comes out to: -9y^2 + 33y + 36 - (9y^2 -21y + 10) = -9y^2 + 33y + 36 - 9y^2 + 21y - 10 Now combine like words to get: -18y^2 + 54y + 2
2016-11-27 00:05:37 · answer #2 · answered by Anonymous · 0⤊ 0⤋
just multiply each item in the first grouping with each item in the second grouping. then simplify this by combining like terms!
21x^2 + (-12x) + 9xy + (-14xy) + (-(-8y)) + (-6y^2)
now combine like terms, so you only add coefficients if the variables and orders are matching
21x^2 -12x -5xy + 8y - 6y^2
may God have mercy on your soul if you have to find the roots also.
2006-12-17 01:37:02 · answer #3 · answered by otis_hobson 3 · 0⤊ 0⤋
boy, guess you are getting others do your home work.
(3x - 2y)(7x -4+3y)
= 3x(7x -4+3y)- 2y(7x -4+3y)
= 21x^2 -12x +9xy - 14xy+8y-6y^2
= 21x^2 -12x -5xy +8y-6y^2
2006-12-17 01:43:01 · answer #4 · answered by kapilbansalagra 4 · 0⤊ 0⤋
(3x - 2y)(7x -4+3y) is the simplest form
2006-12-17 01:35:04 · answer #5 · answered by James Chan 4 · 0⤊ 1⤋
21x2 – 5xy – 6y2 – 12x + 8y
2006-12-17 01:34:06 · answer #6 · answered by myl 2 · 0⤊ 1⤋
(3x-2y)(7x-4+3y)
21x^2-12x+9xy-14xy+8y-6y^2
21x^2-12x-5xy+8y-6y^2
2006-12-17 01:39:51 · answer #7 · answered by Stephanie73 6 · 0⤊ 0⤋
21x^2-6y^2-5xy-12x+8y
2006-12-17 01:34:21 · answer #8 · answered by Mike 4 · 0⤊ 1⤋
(21x2-12x-14xy+8xy+9xy-6y)
(21x2-12x-3xy-6y)
(21x2-3xy-6y)=12x/12x
12x 12x 12x
(21/12x-3/12xy-1/2y)=0
and that it.
2006-12-17 01:42:42 · answer #9 · answered by BullShit Man 1 · 0⤊ 0⤋
21x-6y-4
2006-12-17 01:32:05 · answer #10 · answered by ablock 781 2 · 0⤊ 2⤋