a.) 5a-10b-3ax+6xb
b.) 3x^2-4y+3xy-4x
c.) 21x^2-14x-9x+6
2007-11-14 06:18:51 · 2 answers · asked by ramirez 1 in Science & Mathematics ➔ Mathematics
by groupings
a) 5(a-2b) - 3x(a-2b) = (5-3x)(a-2b)
b) 3x(x+y) -4(x+y) = (3x-4)(x+y)
c) 7x(3x-2) - 3(3x-2) = (7x-3)(3x-2)
2007-11-14 06:24:05 · answer #1 · answered by norman 7 · 0⤊ 0⤋
a) Simplifying
5a + -10b + -3ax + 6xb
Reorder the terms:
5a + -3ax + -10b + 6bx
Final result:
5a + -3ax + -10b + 6bx
b) Simplifying
3x^2 + -4y + 3xy + -4x
Reorder the terms:
-4x + 3xy + 3x^2 + -4y
Final result:
-4x + 3xy + 3x^2 + -4y
c) Simplifying
21x^2 + -14x + -9x + 6
Reorder the terms:
6 + -14x + -9x + 21x^2
Combine like terms: -14x + -9x = -23x
6 + -23x + 21x^2
Factor a trinomial.
(3 + -7x)(2 + -3x)
Final result:
(3 + -7x)(2 + -3x)
2007-11-14 06:33:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋