Question

(2e + 3f)² + 8(2e + 3f) + 15 factorise​

Answer 1

opening by (a+b)²

4e²+9f²+6ef+16e+24f+15

now taking terms with common variables

4e²+16e+9f²+24f+6ef+15

now taking common

4e(e+4)+3f(f+8)+3(2ef+5)