Question

plz someone solve this​

Answer 1

Answer:

mark brainlist............

Answer 2

Answer:

$\bold\red{ (xxiv)\:(a - b)(a + b - 2)}$

$\bold\red{(xxvi)\:(a - b)(a + b - 4c)}$

Step-by-step explanation:

Given,

$(xxiv) \: {a}^{2} - 2a - {b}^{2} + 2b \\ \\ = {a}^{2} - {b}^{2} - 2a + 2b \\ \\ = (a - b)(a + b) - 2(a - b) \\ \\ = \bold{ (a - b)(a + b - 2)}$

Also,

$(xxvi) \: {a}^{2} - {b}^{2} - 4ac + 4bc \\ \\ = ( {a}^{2} - {b}^{2} ) - 4c(a - b) \\ \\ = (a - b)(a + b) - 4c(a - b) \\ \\ = \bold{(a - b)(a + b - 4c)}$