You visited us 2 times! Enjoying our articles? Unlock Full Access!

Factorisation Using Algebraic Identities

Factorize the...

Question

Factorize the following expression
$b^{2} - 4$

(b + 2) (b - 2)

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

(b - 2) (b - 2)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

(b + 3) (b + 2)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $(b + 2) (b - 2)$
Given,
$b^{2} - 4$

Using Indentity
$a^{2} - b^{2} = (a - b) (a + b)$

$= (b - 2) (b + 2)$

Suggest Corrections

Similar questions

b^{2}

4 b^{2}

$4 a^{2} + b^{2} + 4 a b + 8 a + 4 b + 4$ =?

(a) $(2 a + b + 2)^{2}$

(b) $(2 a - b + 2)^{2}$

(d) None of these

\frac{2 b + a - \frac{4 a^{2} - b^{2}}{a}}{b^{3} + 2 a b^{2} - 3 a^{2} b} \cdot \frac{a^{3} b - 2 a^{2} b^{2} + a b^{3}}{a^{2} - b^{2}}

a

b

(3 a + 2 b)^{2} + (2 a + 3 b)^{2}

a^{2} + b^{2} = 5

a b = 2

a^{4} - 2 a^{2} b^{2} + b^{4}

Join BYJU'S Learning Program