All categories

1 year ago

Factorise the following

Mathematics

1 answer:

Irina18 [472]1 year ago

5 0

Answer:

see explanation

Step-by-step explanation:

(a)

2x + 10 ← factor out 2 from each term

= 2(x + 5)

(b)

5x - 15 ← factor out 5 from each term

= 5(x - 3)

(c)

8x + 6 ← factor out 2 from each term

= 2(4x + 3)

(d)

12x - 8 ← factor out 4 from each term

= 4(3x - 2)

You might be interested in

What is 7 times 7 over 1 equal

Alex17521 [72]

Answer:

Step-by-step explanation:

7*7/1=49 This is because 7/1 equals 7 since 1 goes into 7, 7 times so really the equation 7*7 which still equals 49.

7 0

2 years ago

Read 2 more answers

You and your friend Sam are going to paint your 300 square feet room together.

Elza [17]

Fraction that Sam painted in 1 min is:
10/25=2/5
Fraction that you painted in 1 min:
5/25=1/5

Fraction pained by both in 1 min:
1/5+2/5=3/5 ft²/min
Time taken to paint 50 ft² will be:
time=3/5×50=30 min
Thus we conclude that Sam was wrong.

4 0

3 years ago

Which is a solution to (x – 3)(x + 9) = –27? x = –9 x = –3 x = 0 x = 6

Margarita [4]

Expand
x²+6x-27=-27
add 27 both sides
x²+6x=0
factor
x(x+6)=0
set to zero

x=0

x+6=0
x=-6

x=0 or -6

answer is 0 since -6 is not listed

8 0

2 years ago

Read 2 more answers

A pet store has 9 dogs, 6 cats, 8 gerbils, and 7 parrots. A pet is chosen at random. What is the probability of choosing a cat o

Gelneren [198K]

Answer: D I believe since 15 is 50% of 30

Step-by-step explanation: Sorry if I'm wrong, If I'm right can you mark brainliest :)

3 0

2 years ago

Read 2 more answers

If f(x) = 2x+4, which of the following is the inverse of f(x)?

Mrrafil [7]

By definition of inverse function,

$f\left(f^{-1}(x)\right) = x$

Given that f(x) = 2x + 4, solve for the inverse of f :

$f\left(f^{-1}(x)\right) = 2 f^{-1}(x) + 4 = x \implies f^{-1}(x) = \dfrac{x-4}2$

(I'm not entirely sure which answer that corresponds to from the choices provided...)

4 0

1 year ago

Factorise the following​

Factorise the following