Final answer to the problem
$x=\frac{7}{3},\:x=-\frac{3}{4}$
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Step-by-step Solution
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- Find the derivative using the definition
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1
Factor the trinomial $12x^2-19x-21$ of the form $ax^2+bx+c$, first, make the product of $12$ and $-21$
$\left(12\right)\left(-21\right)=-252$
Learn how to solve equations problems step by step online. Solve the quadratic equation 12x^2-19x+-21=0. Factor the trinomial 12x^2-19x-21 of the form ax^2+bx+c, first, make the product of 12 and -21. Now, find two numbers that multiplied give us -252 and add up to -19. Rewrite the original expression. Factor 12x^2-28x+9x-21 by the greatest common divisor 4.
Final answer to the problem
$x=\frac{7}{3},\:x=-\frac{3}{4}$
