Question

find the product of 0.2 xy ( 3 x + 2 y ) and verify the result when X= 5 y = -1​

Answer 1

Answer:

putting the value of x and y

now ,

0.2 × 5×-1 ( 3×5 + 2× -1 )

(0.2 × -5 ) × 15 + ( -2 )

-1 × 13

-13 is a ans

Answer 2

Answer:

Given- 0.2 xy ( 3 x + 2 y )

- X= 5

- y = (-1)

to find - value of the product

solution-

0.2 xy ( 3x+ 2y)

0.2xy× 3x + 0.2xy × 2y

0.6x^2y + 0.4xy^2

putting the value of x= 5 and y = (-1)

0.6(25)(-1) + 0.4(5)(1)

0.6× (-25)+ 0.4× 5

-15+ 2

-13

verifiying the result

0.2 xy ( 3 x + 2 y )

0.2(5)(-1) (3)(5)+ 2(-1)

-1 (15-2)

-1(13)

-13

hence , verified