pinkyglitter2696
06.09.2020 •
Mathematics
If x=3 is a solution of the equation 2x²-5x+k=0 find the value of k
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Ответ:
k = - 3
Step-by-step explanation:
Given that x = 3 is a solution then it satisfies the equation, that is
2(3)² - 5(3) + k = 0
2(9) - 15 + k = 0
18 - 15 + k = 0
3 + k = 0 ( subtract 3 from both sides )
k = - 3
Ответ:
225 ,323, 425
Step-by-step explanation: