Question

plz solution with full math

( i need this plz answer)​​

Answer 1

Associativity for Sum(+)

(a + b) + c = a + (b + c)

here

a = 1, b = 8, c = -4

so now,

put these value,

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

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

(9) - (4) = (1) + (4)

5 = 5

so associativity holds for Addition...

now for..

Associativity for multiplication (×)

(a × b) × c = a × (b × c)

here

here a = 1, b = 8, c = -4

here a = 1, b = 8, c = -4so now,

here a = 1, b = 8, c = -4so now,put these value,

(1 × 8) × (-4) = (1) × (8 × (-4))

(8) × (-4) = (1) × (-32)

-32 = -32

so associativity holds for Multiplication...