Question

Hey guys i have three questions can you help me? Ive just started college and I need help with this basic algebra.

1. 2a^2+7ab+3b^2

2. 3a^2-8ab-28b^2

3. 36x^2-12x+1

if you could also explain to me how to do this that would be even better.

Answer 1

please help me!!

Answer 2

quadratic equations:
there are 4 method to factor out the quadratic equations

Answer 3

s*

Answer 4

i'll go with the easy one
Ac method also known as headphone method
where you have to find two numbers when you multiply them you should get product of AC and when you add them yo should get middle term

Answer 5

for the first one I would start it as

(2a+ ?b) (a+?b)

Answer 6

so i would multiply the 2 and the 3 to get the middle term?

Answer 7

yes right:
find two numbers when you multiply them you should get 6 but when you add them you should get 7ab

Answer 8

that would be 2a^2+8ab+6b^2 thats not right

Answer 9

hmm

Answer 10

okay im not following why do i add?

Answer 11

or would this one be prime?

Answer 12

you should find `two` numbers when you `add` them you should get `middle` term
but when you multiply same numbers you should get product of ac
what two numbers would you multiply to get 6 but when you add them you get 7 ?

Answer 13

1 and 6

Answer 14

yes right
leading coefficient isn't so we have to use factor by groping method carry down the first and last term
and write the numbers u just found in the middle