Using a suitable identity, find each of the following products:
$(2 l - 3 m) (2 l + 3 m)$

Open in App

Solution

We need to multiply the polynomials $(2 l - 3 m) (2 l + 3 m)$
By using identity $(a + b) (a - b) = a^{2} - b^{2}$ , we can find the product.
Here $a = 2 l, b = 3 m$
Therefore, $(2 l - 3 m) (2 l + 3 m) = 4 l^{2} - 9 m^{2}$
This is the required answer.

Suggest Corrections

Similar questions

(\frac{1}{x} + \frac{1}{y}) (\frac{1}{x} - \frac{1}{y})

(100 + 3) (100 - 3)

Use a suitable identity to get each of the following products.

(1.1 m - 0.4) (1.1 m + 0.4)

(6 x - 7) (6 x + 7)

Join BYJU'S Learning Program