NCERT Class 8 Mathematics Solutions: Chapter 14 –Factorisation Exercise 14.4 Part 3

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Some quadric equation using factoring

Some Quadric Equation Using Factoring

1. Find and correct the errors in the following mathematical statements: Substituting in:

(a) gives

(b) gives

(c) gives

Answer:

(a) L.H.S.

Putting in given expression,

So, gives

(b) L.H.S.

Putting in given expression,

So, gives

(c) L.H.S.

Putting in given expression,

So, gives

3. Find and correct the errors in the following mathematical statement:

Answer:

L.H.S.

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So, the correct statements is .