Question

. Using the identity:x'+(a+b)x+ ab = (x+a)(x+b), complete the following. 1. x' + 13x + 30 =(x + 10) 2. x² +22x+21=(x+21)​

Answer 1

Answer:

missing parts are

1.x+3

2.x+1

Explanation:

refer the above picture