Question

x^2-3x-28? factor

Answer 1

x^2-7x+4x-28
x(x-7)+4(x-7)
(x+4)(x-7)

Answer 2

@nitz please don't post direct soln, guide the asker step by step rather then posting direct solutions

Answer 3

ok sorry @mathslover

Answer 4

no problem

Answer 5

everyone is a critic i see

Answer 6

the way I do these
x^2-3x-28? factor

look at the last number. -28.
first, the minus means you will have 2 numbers with opposite signs (a + and a -)
Next, list the factors of 28
1,28
2,14
4,7
now look for a pair when you subtract them (make one + and the other -) you get -3
(the -3 from the -3x term)

Answer 7

@satellite73 nothing critic about this, just giving an advice.. it depends on you whether you take this as positive or negative