Question

yaar help krr do na please jo meri help krga mai usko follow krungi aur 15 thanks bhi dungi​

Answer 1

1. x^2y + y^2x

= (5)^2 × (-2) + (-2)^2 × 5

= 25 × (-2) + 4 × 5

= -50 + 20

= -30 Ans

2. x^2yz + xy^2z + xyz^2

= (5)^2 × (-2) × 3 + 5 × (-2)^2 × 3 + 5 × (-2) × (3)^2

= 25 × (-2) × 3 + 5 × 4 ×3 + 5 × (-2) × 9

= -150 + 60 - 90

= -240 + 60

= -180 Ans

3. (xy)^2z + (zx)^2y

= [5 × (-2)]^2 × 3 + (3 × 5)^2 × (-2)

= (-10)^2 × 3 + (15)^2 × (-2)

= 100 × 3 + 225 × (-2)

= 300 - 450

= -150 Ans

4. xyz + xyz + xyz

= 5 × (-2) × 3 + 5 × (-2) × 3 - 5 × (-2) × 3

= -30 - 30 + 30

= -60 + 30

= -30 Ans

5. x^3yz + z^3xy

= (5)^3 × (-2) × 3 + (3)^3 × 5 × (-2)

= 125 × (-2) × 3 + 27 × 5 × (-2)

= - 750 - 270

= -1020 Ans