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Vanyuwa [196]
2 years ago
9

The roots of the equations 9x2+3x– 4=0 are

Mathematics
1 answer:
KIM [24]2 years ago
4 0

Answer:

It's 4 bc from quadratic formula it's 3×square root of 17

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Four times a number decreased by seven
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In order to answer this question, we must break this mathematical expression up into a series of mathematical operations (exponent, multiplication,division, addition, and/or subtraction):

"4 times a number" - The word "times" implies that we have to multiply 4 by an unknown number. We can simply label this unknown number as x.
"cubed" - In order to "cube" a number, we must raise it to the third power, or have an exponent of 3. Our unknown number of x now becomes x3 because we raised it to the third power.
"decreased by 7" - The word "decreased" implies that we must subtract 7 from the product of 4 multiplied by x3

With all of the information we now have, we can form an algebraic expression for this problem.
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4x3 - 7
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