Question

slove this question with explainton
Wrong Answer ❌❌ = Report
Correct Answer ✅✅ = brainlist and thanks​

Answer 1

Given,

a = 2

b = (-1)

c = 4

Find : (a²+b²+c²-bc-ca-ab)

by substituting,

(a²+b²+c²-bc-ca-ab)

= (2)² + (-1)² + (4)² - (-1×4) - (4×2) - (2×-1)

= 4 + 1 + 16 - (-4) - (8) - (-2)

by removing the brackets,

= 4 + 1 + 16 + 4 - 8 + 2

= 27 - 8

= 19

HOPE IT HELPS!

HAVE A GREAT DAY!

Answer 2

Answer:

7 is your answer mate. Hope it helps. The above attachment is with solution.

Thanks.