The correct option is A 25x^2 9We know the identity (a + b)(a b) = a^2 b^2 So, (5x 3)(5x + 3) nbsp; nbsp; nbsp;= ((5x)^2 3^2) nbsp ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Visualisation of (X+A)(X+B)

n5 x-35 x+3=

Question

$(5 x - 3) (5 x + 3)$ =

25 x^{2} - 9

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

- 25 x^{2} - 9

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

25 x^{2} + 9

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

Open in App

Solution

The correct option is A $25 x^{2} - 9$
We know the identity $(a + b) (a - b) = a^{2} - b^{2}$
So, $(5 x - 3) (5 x + 3)$
= $((5 x)^{2} - 3^{2})$
= $25 x^{2} - 3^{2}$
= $25 x^{2} - 9$
Thus, $(5 x - 3) (5 x + 3)$ = $25 x^{2} - 9$

Suggest Corrections

Similar questions

25 x^{2} - 9

\frac{35 (x - 3) (x^{2} + 2 x + 4)}{7 (x - 3)}

{(\frac{- 3}{5})}^{4} ?

\frac{(- 3)^{4}}{5^{4}}

\frac{3^{4}}{(- 5)^{4}}

- \frac{3^{4}}{5^{4}}

\frac{- 3}{5} \times \frac{- 3}{5} \times \frac{- 3}{5} \times \frac{- 3}{5}

$3 (5 x - 7) - 2 (9 x - 11) = 4 (8 x - \frac{1}{3}) - 17$

Join BYJU'S Learning Program