Question

evalute using suitable identities (49)^2​

Answer 1

Step-by-step explanation:

using (a-b)^2=a^2+b^2-2ab

we can write

${49}^{2}$

as

${(50 - 1)}^{2}$

$= {50}^{2} + 1 - 2 \times 50 \times 1$

$= 2500 + 1 - 100$

$2401$

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thanks for asking;)

Answer 2

Solution:

We can write (49)^2 as (50-1)^2

•°•By using identify of

${a}^{2} - 2ab + {b}^{2} = {(a - b)}^{2}$

${(50 - 1)}^{2} = {(50)}^{2} - 2(50)(1) + {(1)}^{2} \\ = 2500 - 100 + 1 \\ = 2401$

•°•2401 will be your answer.

Hope this helps you