Question

(1) (a + b)2 – 5(a + b) - 6​

Answer 1

Answer:

(a+b)² -5(a+b) -6

= a²+b²+2ab -5a-5b-6

Answer 2

• 2a+2b-5a-5b-6=0
• -3a-3b-6=0
• -3a-3b=6
• -3(a+b)=6
• a+b=6+3
• a+b=9