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Polynomials
1. Simplify : −5x – 2y + x – 10y
2. Simplify : 3(x – 6)
3. Simplify : (2x^{2}− 4x + 3) − (−x^{3} + 5x – 4)
4. Simplify : 3x – 2[x – 4(3 – x)]
5. What is the sum of the polynomials 4x^{2}y – 6xy^{2} and −2xy^{2} + x^{2}y?
6. Simplify : (3x + 1)(x – 8)
7. Simplify : 3a(a + 2b – 5)
8. Simplify : (2x + y)^{2
}
9. Simplify :
10. Simplify :
11. Divide : (x^{3} + 2x + 3) รท (x – 2)
12. The height of a rectangle is 5 cm less than twice the width, w. Write
an expression that represents
a. the perimeter of the rectangle in cm
b. the area of the rectangle in cm^{2
}
13. The radius of a circle can be represented by the expression a + 5.
Which expression represents the area of the circle?
a. π(a^{2} + 5)
b. π(2a + 10)
c. π(a^{2} + 25)
d. π(a^{2} + 10a + 25)
Answers:
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