Question

Factorise 4 − ( − )4

Answer 1

Answer:

We need to factorise a4−(b+c)4

The given expression can be factorised by using property (x2−y2)=(x+y)(x−y)

It can be written as a4−(b+c)4=(a2)2−[(b+c)2]2

Here x=a2,y=(b+c)2

Hence, (a4−(b+c)4)=(a2+(b+c)2)(a2−(b+c)2)=(a2+(b+c)2)(a+b+c)(a−b−c)

Hence, the factors are (a2+(b+c)2),(a+b+c),(a−b−c).

Answer 2

Answer:

+8

Step-by-step explanation:

Note:

Steps for Solving the question:

Step 1: Get rid of Bracket by multiplying the sign inside and Outside the bracket.

Rules For multiplication of sign in Addition of integers:

-ve × -ve = +ve

+ve × +ve = +ve

-ve × +ve = Subtraction

Step 2: Put the positive numbers on One side and Negatives on other sides

Step 3 : Perform the operation

Solving this sum :

Step 1 : -ve ×-ve = +ve , So it is equal to 4+4

Step 2: +4+4 =

Step 3: +4+4= +8