Question

if a=3,b=2,c=-5 Then find c²=b²+2abc​

Answer 1

Answer:

(5)2=(2)2+2x3x2x5

25=4+12

25=16

Answer 2

Answer:

This question is invalid. See for yourself

a = 3, b = 2, c = -5

⇒c² = b² + 2abc​

⇒(- 5)² = 2² + 2 × 3 × 2 × (- 5)

⇒25 = 4 + (- 60)

⇒25 = - 56 (incorrect)