Question

Which polynomial is 4x+3 a factor

Answer 1

B. Hope I helped!!!!

Answer 2

 B. 
First look to simplify: 
(40x^2 + 22x - 6) = (2)(20x^2 + 11x - 3) 

now factor knowing one side must be (4x + 3) 
(2)(20x^2 + 11x - 3) = 
(2)(4x + 3)("SomethingX" + "something") 

4x times SomethingX must = 20x^2 
Something must be 5 (4x * 5x = 20x^2) 

now we know: 
(2)(20x^2 + 11x - 3) = 
(2)(4x + 3)(5X + "something") 

3 times "something" must equal -3 
that must be -1... therefore: 
(2)(20x^2 + 11x - 3) = 
(2)(4x + 3)(5X + -3) 

The fact that this works and the others don't means the answer is B.