2 years ago

When the expression x2-3x-18 is factored completely,which is one of its factors?

Mathematics

1 answer:

lesya692 [45]2 years ago

4 0

Answer:

(x+3) and (x-6) are factors

Step-by-step explanation:

The given expression is :

x²-3x-18

We need to find the factors of the above expression.

We can solve it using middle term splitting. We find two integers such that there product is -18 and sum is -3. These two numbers can be -6 and 3.

x²-3x-18 = x²-6x+3x-18

= x(x-6)+3(x-6) [taking common terms]

= (x+3) (x-6)

Hence, the factors of the above expression is (x+3) and (x-6).

You might be interested in

By talking to the sales clerk at the hardware store, you find out that the burglar has two hideouts — the lake house and the cab

DaniilM [7]

Cabin is your answer

3 0

2 years ago

The first step in solving 7/8 = 3x - 5/11 is to subtract 5/11 from both sides of the equation.

Ostrovityanka [42]

False because -5/11 should be add on both sides

3 0

2 years ago

Of 80 t-shirts, 10% are white, 30% are blue and the rest are red. How many are red?

juin [17]

There is 60% of red t-shirts 40% of them are white and blue so the reds are 60%

6 0

2 years ago

Read 2 more answers

Find the Value of X (In this picture)

slava [35]

Answer:

x = 63

Step-by-step explanation:

It's Quadrilateral so:

360-90-72= x + x +22 (Cause that 2 triangle is isosceles)

2x=126

x=63

4 0

3 years ago

X+y=c x/y=p/q please find x and y

Paul [167]

Step-by-step explanation:

x=c-y. / x=py/q

y=c-x. / y=xq/p

7 0

3 years ago

Read 2 more answers