Can anyone help me solve this algebra Q? With the workings?

Question

x^2+5x-6=(x+m)(x+n)

what are the values of m and n?

A.m is-6,n is -1

B.m is -3 n is -2

C.m is -1,n is 6

D.m is 3, n is 2

Answer 1

you can factorise it straight away as that equals (x-1)(x+6). You do this as m times n equals to -6 and m+n =5.

Therefore m is -1 and n=6 (C) Hope this helps

Answer 2

c

solving the equation you get 5x-6 = (m+n)x + mn

therefore m+n = 5 and mXn = -6.  

AM

Answer 3

C.m is -1,n is 6

Here, you need to find the factors of -6 that when added will be equal to +5.

Factors of -6:

1, -6: Sum =  -5

2, -3: Sum = -1

3, -2: Sum = +1

6, -1: Sum = +5

Therefore:

C.m is -1,n is 6 ANSWER