Will award brainliest
1.factor the gcf: 21x3y4 + 15x2y2 − 12xy3. (4 points)
select one:
a. 3xy(7x2y3 + 5x − 4y)
b. 3xy(7x2y + 5x − 4y2)
c. 3xy2(7x2y + 5x − 4y)
d. 3xy2(7x2y2 + 5x − 4y)
2. determine the factors of 15x2 + 3xy + 10x + 2y. (4 points)
select one:
a. (3x + 2)(5x + y)
b. (5x + y)(2x + 3)
c. (3x + y)(5x + 2)
d. (5x + 3)(2x + y)
3.
select the factors of 10ax + 5bx − 8ay − 4by. (4 points)
select one:
a. (2a + 4y)(5x − b)
b. (2a − 4y)(5x + b)
c. (2a − b)(5x + 4y)
d. (2a + b)(5x − 4y)