Question

factorise
49a²+70ab+25b² ​

Answer 1

Answer:

see below

Explanation:

49a² + 70ab + 25b²

(7a)² + 2 × (7a) × (5b) + (5b)²

(7a + 5b)²

Answer 2

$\underline\mathfrak\green{Answer:-}$

Here we can seè that

49² = (7a)², 25b² = (5b)², 70ab = 2(7a) (5a)

.

Comparing the given expression with x² + 2xy + y², we observe that x = 7a and y = 5b.

.

Using identity I, we get

49a² + 70ab + 25b² = (7a + 5b)² = (7a + 5b) (7a + 5b)