3 years ago

Choose the correct classification of x^6 + 3x^3 by number of terms and by degree.

Mathematics

1 answer:

Ahat [919]3 years ago

3 0

X^6 + 3x^6 is a sixth degree binomial because the highest power of x is 6.

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Factor 16x^2 + 49. Check your work.

Shtirlitz [24]

Answer:

$16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

Step-by-step explanation:

Given : Expression $16x^2+49$

To find : Factor the expression ?

Solution :

The given expression is a quadratic function $y=ax^2+bx+c$ the solution is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

On comparing with general form,

a=16, b=0, c=49

Substitute in the formula,

$x=\frac{-0\pm\sqrt{0^2-4(16)(49)}}{2(16)}$

$x=\frac{\pm\sqrt{-3136}}{32}$

$x=\frac{\pm56i}{32}$

$x=\frac{56i}{32},\frac{-56i}{32}$

$x=\frac{7i}{4},\frac{-7i}{4}$

Factors are $(x-\frac{7i}{4}),(x+\frac{7i}{4})$

Therefore, $16x^2+49=(x-\frac{7i}{4})(x+\frac{7i}{4})$

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The cost for children under twelve at a certain buffet restaurant is a base charge of a dollar plus twenty-five cents for each y

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the answer will be

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Step-by-step explanation:

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Easy multiplication and division question

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A gymnast practices 6days each week. She practices the same number of hours each day. If she practices a total of 120 hours in a

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