Question

4. Find the product of 2/7x² (7y + 14x) and verify the result when x = 2 and y = 3.
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Answer 1

Step-by-step explanation:

[(2/7x^2) ×7y] +[(2/7x^2)×14x]

2x^2y + 4x^3

x=2

y=3

[2(2)^2 ×3]+[4(2)^3]

(2×4×3)+(4×8)

24+32

56

verify

2/7×(2)^2(7×3+14×2)

(2/7)×4(21+28)

(8/7)×49

8×7=56