Solve for the roots

a²b-3ab=0

The remainder is equal to f(b) by remainder theorem.

f(b)=b

3

−3b

2

.b+3b.b

2

−b

3

=0

Thus it comes out to be 0.

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17