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icang [17]
2 years ago
12

-9x²(x²+2x²y - 3y²) Simplify

Mathematics
2 answers:
yKpoI14uk [10]2 years ago
4 0
<h2>Your answer is:</h2>

−9x^4−18x^4y+27x^2y^2

<h3><u><em>HAVE A NICE DAY!</em></u></h3>
Dvinal [7]2 years ago
3 0

Answer:

=−18x^4y−9x^4+27x^2y^2

Step-by-step explanation:

(−9x^2)(x^2+2x^2y−3y^2)

=(−9x^2)(x^2+2x^2y+−3y^2)

=(−9x^2)(x^2)+(−9x^2)(2x^2y)+(−9x^2)(−3y^2)

=−9x^4−18x^4y+27x^2y^2

=−18x^4y−9x^4+27x^2y^2

---

Hope I helped! Have a great day :)

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Ax+by=c<br> solve for equation for y
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Step-by-step explanation:

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7 0
3 years ago
14 - (17 - 5) + 8 find the value of the expression (I need help)
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10

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5 0
3 years ago
Read 2 more answers
Need help trigonometry<br>​
pochemuha

Answer:

The measure of angle F is 67.6°

Step-by-step explanation:

In the right triangle DEF

∵ ∠E is the right angle

∵ Side DF is opposite to ∠E

∴ DF is the hypotenuse of the triangle DEF

∵ Side EF is the adjacent side of ∠F

∵ The cosine ratio = \frac{Adjacent}{Hypotenuse}

∴ cos∠F = \frac{EF}{DF}

∵ EF = 8 units

∵ DF = 21 units

→ Substitute them in the cosine ratio above

∴ cos∠F = \frac{8}{21}

→ Use cos^{-1} to find the measure of angle F

∵ m∠F = cos^{-1}(\frac{8}{21})

∴ m∠F = 67.60731219 degrees

→ Round it the nearest tenth of a degree

∴ m∠F = 67.6°

∴ The measure of angle F is 67.6°

3 0
3 years ago
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