Question

Factor the following trinomial:

20x^2 - 63x + 49

Answer 1

ok.... well this is tough

so

start by multiplying 20 x 49= 980

find the factors of 980 thta add to -63.... both factors are negative...

after using a simple factor tree I found 35 and 28...

so you need

(20x -35)(20x- 28)
-----------------
20

look at each binomial and remove a common factor... 1 factor for each binomial

they will cancel the denominator...

whats left is the factorisation of your quadratic.

Answer 2

I got (5x-7)(4x-7)

Answer 3

thats correct...

Answer 4

Can you help me with the next one?

Answer 5

ok... what is it