Question

Solve the equation by a method of your choice:
6x2 + 5x + 1 = 0
If there are two solutions, separate the solutions by a comma.

Answer 1

@TheSmartOne

Answer 2

Use grouping of the linear term

Answer 3

(ax+b)(cx+d)

you can see that b and c MUST be 1 to multiply out to 1

so (ax + 1)(bx+1)

find a and b so ab=6 and a+b = 5

Answer 4

ok

Answer 5

so what do i do 6 and 5

Answer 6

@BunnyBree

Answer 7

I have shown you haow to factoise the equagtion, and shown that the constant term must be 1 in each bracket

so
(ax + 1)(bx+1)=6x2 + 5x + 1


so a*b =6
a+b = 5

find the values of a and b (you might just need to think about it for a minute...)

Answer 8

ok um i dont know

Answer 9

OK

think of 2 numbers that multiply toghether to make 6

(there are only 2 possible pairs - one of them is 1 and 6)

think of the other one.

Do those two numbers add up to 5?

Answer 10

no

Answer 11

@AriPotta

Answer 12

what are the other 2 numbers that multiply to make 6 (other than 1 *6)?