10 points please help ​

a. 9(2m+7)

b. 4(3r-1)

Step-by-step explanation:

When factoring out the greatest common factor of expressions, first list the factors of the terms. Then, determine the greatest common factor between the two terms. After, "carry" that number out of the expression through division.

a. 18m+63

Start by listing the factors of 18 and 63.

18: 1, 2, 3, 6, 9, 18

63: 1, 3, 7, 9, 21, 63

The greatest common factor of 18 and 63 is 9, so we can carry 9 out of the expression through division:

18m+63

= 9(2m+7)

b. 12r-4

Start by listing the factors of 12 and 4.

12: 1, 2, 3, 4, 6, 12

4: 1, 2, 4

The greatest common factor of 12 and 4 is 4, so we can carry 4 out of the expression through division:

12r-4

= 4(3r-1)

I hope this helps!

(2,9)

i think thats the answer i checked it on google

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions