Question

Using the identity, evaluate the following.
${850}^2-{750}^2$

Answer 1

We have,

${850}^2-{750}^2$

We know that

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

$=(850-750)(850+750)$

$=100\times 1600$

$=160000$

Hence, this is the answer.