Respuesta :
Answer:
Hope this helps :)
Step-by-step explanation:
Factor by grouping
(7x-3)(2x+1)
Answer:
(2x - 1)(7x + 3).
Step-by-step explanation:
14x^2 -x - 3
Use the 'ac' method.
First multiply the leading coefficient by the last term:
14 * -3 = -42.
Now we need to find 2 numbers whose product is -42 and whose sum is the coefficient of x (which is -1).
They are -7 and 6, so we write:
14x^2 - 7x + 6x - 3 Now factorise this by grouping:
= 7x(2x - 1) + 3(2x - 1) 2x - 1 is common:
= (2x - 1)(7x + 3).
