Answer:
(p +5)² = 26
Step-by-step explanation:
p²+10p = 1
try to arrange them like a²+2ab+b² ;
here,
a² = p² → ∴a=p
and,
2ab = 10p
⇒2ab = 10a [∵a=p]
∴ b=5 [dividing both sides by 2a]
∴b²=5²
hence,
⇒ p² + 2 .p.5 + 5² = 1+5² [add 5² on both sides ]
⇒ (p +5)² =1+25
∴ (p +5)² = 26
