3 years ago

Multiply or divide as indicated 2x/4x+2 * 14x+7/6

Mathematics

1 answer:

Talja [164]3 years ago

5 0

Answer: C. 7x/6

Step-by-step explanation: Simplify the expression.

Hope this helps you out! ☺

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Answer:

140

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3 years ago

Find the product and sum of the roots of the equation:<br> 2x^2-9x-10=0

BabaBlast [244]

Answer:

<h3> sum of the roots: $x_1+x_2=4\frac12$ </h3><h3> product of the roots: $x_1x_2=-5$ </h3><h3> Step-by-step explanation:</h3>

$2x^2-9x-10=0\quad\implies\quad a=2\,,\ b=-9\,,\ c=-10$

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From Vieta's formulas applied to quadratic polynomial we have:

if $b^2-4ac\geqslant0$ then

sum of roots: $x_1+x_2=-\dfrac ba=-\dfrac{-9}2=4\frac12$

product of the roots: $x_1x_2=\dfrac ca=\dfrac{-10}2=-5$

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3 years ago

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