Question

Factorize in
algebraic
expressions.
x² + 12x - 45​

Answer 1

Consider the form  

x

2

+

b

x

+

c

. Find a pair of integers whose product is  

c

and whose sum is  

b

. In this case, whose product is  

−

45

and whose sum is  

12

.

−

3

,

15

Write the factored form using these integers.

(

x

−

3

)

(

x

+

15

)

Answer 2

Answer:

By using the formula in

-b+-√b^2-4ac/2a

Step-by-step explanation:

By substituting first with

-b+√b^2-4ac/2a

1)So -12+√144-4×1×45/2

= -12+-36/2

=-48/2

=-24

2)Next use -b-√b^2-4ac/2a

=-12-√144-180

=24/2

=12

So x=-24 and x=12

Please mark me as the brainliest I have done this much for you