Question

Expand the following using identity 2m square plus 5 ka whole square

Answer 1

Answer:

$= (2m + 5) {}^{2} \\ = (x + y) {}^{2} \\ = x {}^{2} + y {}^{2} + 2xy \\ = (2m) {}^{2} + 5 {}^{2} + 2 \times 2m \times 5 \\ = 4m {}^{2} + 25 + 20m$