what should be the value of 3x^2+5x-2t =8, x=-1,find t
Answers
Answered by
11
Step-by-step explanation:
3(-1)^2+5(-1)-2t=8
3-5-2t=8
-2t=8-3+5
-2t= 10
t = -5
Answered by
4
Answer:
t = -5
Step-by-step explanation:
3x² + 5x - 2t = 8
3x² + 5x - 2t = 8
Now, by replacing x with -1 we get this solution
3 x (-1 x -1) + 5 x (-1) - 2t = 8
3 x 1 + (-5) - 2t = 8
3 - 5 - 2t = 8
-2 - 2t = 8
-2t = 8-2
-2t = 6
t = 6/-2
t = -3
Hence, by replacing x with -1 we solved the equation and found the value of t = -3
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