Question

Example 18 : Factorise:
(i) 49a² + 70ab + 25b2​

Answer 1

$\sf \purple{ {49a}^{2} + 70ab + {25b}^{2} } \\ \implies \sf{ {(7a)}^{2} + 2 \times 7a \times 5b + {(5b)}^{2} } \\ \implies \sf{ {(7a + 5b)}^{2}} \\ \implies \sf{(7a + 5b)(7a + 5b)}$

Answer 2

Answer:

(7a+5b)^2

Step-by-step explanation:

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