Question

evaluate
(128 square) - (77 square)​

Answer 1

Step-by-step explanation:

(128+77)(128-77)=

205*51=10455

Answer 2

Answer:

$\huge{\boxed{\boxed{\sf{128^{2}-77^{2}=10455}}}}$

Step-by-step explanation:

$\huge{\boxed{\boxed{\underline{\sf{SOLUTION-}}}}}$

We use formula to solve this

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

To find:

${128}^{2} - {77}^{2}$

${128}^{2} - {77}^{2} \\ = )(128 + 77)(128 - 77) \\ = )(205)(51) \\ = )205 \times 51 \\ = )10455$

$\huge{\boxed{\boxed{\sf{128^{2}-77^{2}=10455}}}}$