Determine the factors of 4x^2 + 5x - 6. (4x - 2)(x + 3) (4x - 3)(x + 2) (4x - 6)(x + 1) (4x - 1)(x + 6)
@Cosmichaotic @jim_thompson5910 @lasttccasey
(4x - 3)(x + 2)
Thanks!
Can you help me with another?
You're welcome. It's rather hard to explain these over the internet but sure.
Determine the factors of 4ry + 3rz + 8xy + 6xz. (4x + 4)(2y + 3z) (4x + 3z)(2y + r) (4y + r)(2x + 3z) (4y + 3z)(2x + r)
@IMStuck
Isn't it D?
(4*y + 3*z)*(r + 2*x) so yes D
What class is this for if you don't mind me asking?
Okay great! Its for Algebra.
Factor completely: 36x^2 - 49 (3x + 7)(12x - 7) (3x - 7)(12x + 7) (6x - 7)(6x - 7) (6x + 7)(6x - 7)
Well the fastest, somewhat cheating, method is to simply FOIL all the given choices. This backfires when you aren't given multiple choice tests though.
This one would also be D right?
Since this one have two perfect square roots its rather easy to find but it becomes (6*x - 7)*(6*x + 7) so yeah D
Which polynomial is a difference of two squares? x^2 + 25 x^2 - 25 x^2 - 10 x^2 + 10 Is this one C? I don't quite understand how to do it.
This page gives a good explanation http://www.purplemath.com/modules/specfact.htm
x^2 - 25 is the answer to this one
Thanks!
You're welcome bud.
What are the zeroes of f(x) = x^2 + 5x + 6? x = -2, -3 x = 2, 3 x = -2, 3 x = 2, -3
Join our real-time social learning platform and learn together with your friends!