Question

Q1) What should be subtracted from x2(sq) + y2(sq) – 2xy to get x2(sq) + y2(sq)?

Q2) Find the value of the expression a3(power3) + b3(power3) + c3(power3) – 3abc for a = 2, b = 3, c = 4 Q.12


Q3) Write The exponential form of 100000 .

Q4) If 2(power3) × 2(power4) = 2?, then what will be power of 2 in the result.


Q.5 Write 1353000000 in standard form.​

Answer 1

Answer:

Let X be subtracted from 3a

2

−6ab−3b

2

Then,

3a

2

−6ab−3b

2

−1−X=4a

2

−7ab−4b

2

+1

x=3a

2

−6ab−3b

2

−1−(4a

2

−7ab−4b

2

+1)

x=3a

2

−6ab−3b

2

−1−4a

2

+7ab+4b

2

−1

x=−a

2

+ab+b

2

−2