Question Details

Simplify the following expression:

( 525 + 175 ) 2 ( 525 175 ) 2 ( 525 × 175 )

Options

A

700

B

4

C

2

D

350

Show Answer

Correct Answer :

Option B

4

Solution :

The correct option is 4.

To simplify the given expression, we can identify a algebraic pattern in the numerator. Let's define:
a=525
and
b=175

Substituting a and b into the expression, we get:
(a+b)2-(a-b)2a×b

Now, let's expand the terms in the numerator using the standard algebraic identities:
(a+b)2=a2+2ab+b2
(a-b)2=a2-2ab+b2

Subtracting the second identity from the first:
(a+b)2-(a-b)2=(a2+2ab+b2)-(a2-2ab+b2)
(a+b)2-(a-b)2=a2+2ab+b2-a2+2ab-b2
(a+b)2-(a-b)2=4ab

Now, substitute this simplified numerator back into our fraction:
4abab

Since a0 and b0, we can cancel out the term ab from both the numerator and the denominator:
4abab=4

Thus, the expression simplifies to the constant value of 4, regardless of the values of 525 and 175.

Unlock Our Free Library

Access expert-curated educational resources and study materials—completely free.

Discover more resources

You may also like

Mock Tests

View All
  • CTET
  • intermediate
  • No time limit
  • child development and pedagogy, mathematics, social science

  • SSC
  • intermediate
  • 2 hours and 30 mins
  • child development and pedagogy, mathematics, social science

Ask AI Tutor
5 left
Q1 View Question & Options
AI Tutor is solving this question...
Reading question context & options...