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Mathematics

1 answer:

antoniya [11.8K]4 years ago

3 0

Answer:

20x⁴y⁴

Step-by-step explanation:

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Please help! <br> It is college algebra

uranmaximum [27]

Answer: $x = 5 , \frac{-1}{3}$

Step-by-step explanation:

$8(^{x^{2}-\frac{14}{3}x}) = 32$

This could be written in index form as :

$2^{3}( ^{x^{2}-\frac{14}{3}x})=2^{5}$

By laws of indices , we will equate their power , that is :

$3(x^{2} -\frac{14}{3}x) = 5$

Expanding , we have :

$3x^{2} -14x=5$

$3x^{2} -14x-5=0$

factorising the Quadratic equation , we have :

$3x^{2} -15x + x -5=0$

$3x(x-5)+1(x-5)=0$

$(x-5)(3x+1) = 0$

Therefore:

$x-5 = 0$ or $3x+1=0$

$x = 5 , \frac{-1}{3}$

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3 years ago

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Which expression has like terms?

BlackZzzverrR [31]

Answer:

Step-by-step explanation:

the like terms are +6y and +9y because they both have y as the variable

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3 years ago

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The sum of three times a number x and nine"

ira [324]

Answer:

3x+9

Step-by-step explanation:

you are multiplying 3 and x because it says "three times a number x" which means 3x and you are adding it to 9 which is 3x+9.

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-4 + 7 = 11 solve this equation

Savatey [412]

Step-by-step explanation:

this isn't an equation

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9(-5a) simplify the equation

igor_vitrenko [27]

-45a

Hope this helps!

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3 years ago