Question

Factories X2 -25b2


Solve it

Answer 1

Step-by-step explanation:

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Answer 2

Required Answer:-

Given To Factorise:

• x² - 25b²

Solution:

We know that,

➡ a² - b² = (a + b)(a - b)

Using this identity, we can factorise it.

x² - 25b² can be written as,

= (x)² - (5b)²

= (x + 5b)(x - 5b) which is the factorised form of the polynomial.

If you don't know this identity, there is another approach of solving. Here is it.

x² - 25b² can be written as,

= x² - 5bx + 5bx - 25b² (Add and subtract)

= x(x - 5b) + 5b(x - 5b)

= (x + 5b)(x - 5b) which is the factorised form.

★ Hence, the factorised form of the polynomial is (x + 5b)(x - 5b)

Answer:

• The factorised form of the polynomial is (x + 5b)(x - 5b)