2 years ago

Factorise the following expression :

Mathematics

1 answer:

Svetlanka [38]2 years ago

4 0

Answer:

(i)(a - 2y) (3x - 4b)

(iii) (m - n)(m + 4)

Step-by-step explanation:

(i)

3ax - 6xy + 8by - 4ab

= 3x (a - 2y) - 4b (-2y + a)

= 3x (a - 2y) - 4b (a - 2y)

= (a - 2y) (3x - 4b)

(iii)

${m}^{2} - mn + 4m - 4n \\ \\ = m(m - n) + 4(m - n) \\ \\ = (m - n)(m + 4)$

You might be interested in

HELP PLEASE!!!!!!!!!!!!!!!!!

GalinKa [24]

Answer:

Step-by-step explanation:

on x line it = 3 and there is no slope/no steep hill yk

7 0

2 years ago

Read 2 more answers

A forestal station receives the locations of two fires, one of them in a forest located 11 Km heading N69°W from the station. Th

loris [4]

Answer:

30.7 km

Step-by-step explanation:

The distance between the two fires can be found using the Law of Cosines. For ΔABC in which sides 'a' and 'b' are given, along with angle C, the third side is ...

c = √(a² +b² -2ab·cos(C))

The angle measured between the two fires is ...

180° -(69° -35°) = 146°

and the distance is ...

c = √(11² +21² -2(11)(21)cos(146°)) ≈ √945.015

c ≈ 30.74

The straight-line distance between the two fires is about 30.7 km.

8 0

2 years ago

Tony walks 1/3 of a mile to school each day. He also walks home from school. How many miles will he have walked in one five-day

djyliett [7]

Answer:

<h2> 3 1/3 miles per five day week</h2>

3 0

1 year ago

9/34 × 17/6 =<br><br> PLEASE HELP

Deffense [45]

It would equal 0.75 and as a fraction it is 3/4

4 0

2 years ago

Read 2 more answers

Which number line represents the solution set for the inequality –4(x + 3) ≤ –2 – 2x?

Yuliya22 [10]

<span>–4(x + 3) ≤ –2 – 2x

>>.....-4x -12 </span>≤ -2 -2x

>> -12 +2 ≤ +2x

>> - 10 ≤ 2x

>> -5 ≤ x............>> x >= -5

This answer is not represented in the pictures you attached

The line starts in x = -5 and goes up to infinity

3 0

2 years ago

Read 2 more answers

Factorise the following expression :​

Factorise the following expression :