7. Find the value of k it x=3, y=1 is the solution of the equation 2xsquare – 4k - 2 y cube= 0
a. 4
b. -4
c. 0
d. None of these
Answers
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1
Answer:
k = 4
Step-by-step explanation:
2x ² - 4k - 2y³ = 0
=》 2× 3² - 4k - 2× 1³ = 0
=》18 - 4k- 2 = 0
=》16 - 4k = 0
=》 -4k = -16
=》 4k = 16
=》 k = 16 ÷ 4
=》 k = 4
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