Answer:
Factoring out Greatest Common Factor (GCF)
Factor out greatest common term
:
Factoring by Grouping
Find 2 two numbers that multiply to ac (-60) and sum to b (11)
Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
Therefore, the two numbers are 15 and -4
Rewrite b as the sum of these 2 numbers:
Factorize the first two terms and the last two terms separately:
Factor out the common term (4x + 3):
Factoring by Grouping
Factorize the first two terms and the last two terms separately:
Factor out the common term (x + a):