Factories-20-2m+6m^2
Answers
Changes made to your input should not affect the solution:
(1): "m2" was replaced by "m^2".
STEP
1
:
Equation at the end of step 1
(2m2 - 6m) - 20
STEP
2
:
STEP
3
:
Pulling out like terms
3.1 Pull out like factors :
2m2 - 6m - 20 = 2 • (m2 - 3m - 10)
Trying to factor by splitting the middle term
3.2 Factoring m2 - 3m - 10
The first term is, m2 its coefficient is 1 .
The middle term is, -3m its coefficient is -3 .
The last term, "the constant", is -10
Step-1 : Multiply the coefficient of the first term by the constant 1 • -10 = -10
Step-2 : Find two factors of -10 whose sum equals the coefficient of the middle term, which is -3 .
-10 + 1 = -9
-5 + 2 = -3 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -5 and 2
m2 - 5m + 2m - 10
Step-4 : Add up the first 2 terms, pulling out like factors :
m • (m-5)
Add up the last 2 terms, pulling out common factors :
2 • (m-5)
Step-5 : Add up the four terms of step 4 :
(m+2) • (m-5)
Which is the desired factorization
Step-by-step explanation: