Ex.14.3 Q11 Factorization - NCERT Maths Class 8

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Question

Q11. Find and correct the errors in the statement:

\[{(2x)^2} + 5x = 4x + 5x = 9x\]

Text Solution

What is known?

Incorrect mathematical statement.

What is unknown?

Correct mathematical statement.

Reasoning:

Solve \(L.H.S.\)

Steps:

\[\begin{align}L.H.S.& = {(2x)^2} + 5x \\&= 4{x^2} + 5x\\L.H.S. &\ne R.H.S.\end{align}\]

The correct statement is \({\left( {2x} \right)^2} + 5x = 4{x^2} + 5x\)