Question

Find the value of t if the value of 3x2 + 5x – 2t equals to 8, when x = -1.
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Answer 1

$Given\: that \: x = - 1\\=> 3x^2 + 5x -2t = 8 \\substitute\:the\:value\:of\:x\:in\:above\:equation\\3(-1)^2+5(-1)-2t=8\\3-5-2t=8\\-2t=8+2\\t = \frac{10}{-2} \\t = -5\\\pink{Hope\:it\:helps\:you!}$