Question

[8.03] Using complete sentences, explain how to completely factor 3x2 − 3x − 60.

Help please.! :)

Answer 1

no

Answer 2

for the first step you can factorizing out from evra 3 terms 3 ,yes ?
so than will get

3(x^2 -x -20) =

so than now we need working with x^2 -x -20

so you see that the coeficient of second term is -1 what is b if you consider the standard form of quadratic equation ax^2 +bx +c =0

and -20 = c

so for you can factorizing this quadratic you need getting 2 numbers p and q with property
that p-q=-1 and p*q=-20

if you check some numbers you will get that for p=-5 and q=4 you will get the necessary results for b and c so -5+4=-1 and -5*4=-20

so hence you can rewriting this quadratic factorized in the form of

x^2 -x -20 = (x-5)(x+4)

but don't forget it that the initially quadratic was

3x^2 -3x -60 = 3(x^2 -x -20) = 3(x-5)(x+4)

so hope so much that you have understood it right,easy

good luck

bye

Answer 3

thanks

Answer 4

yw

was my pleasure

good luck


hope so much that is understandably sure easy right