Question

without actual squaring find the value of c ​

Answer 1

Answer:

${8}^{2} - {7}^{2} = c \\ (8 + 7)(8 - 7) = c \\ 15 \times 1 = c \\ c = 15$

Hope it helps :) :)

Step-by-step explanation:

By using the identity,

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

Answer 2

Answer:

c = 15

Hope it helps

:):):)