Question

4q^2-p^2+2pr-r^2 Factorise the following ​

Answer 1

Answer:

${4q}^{2} - {p}^{2} + 2pr - {r }^{2} \\ = {4q}^{2} - ({p}^{2} - 2pr + {r }^{2}) \\ = ( {2q)}^{2} - ( p- r)^{2} \\ = (2q + p- r)(2q - p + r) \: ans.$