Perform the indicated operations:

a. x(x + 2y) + y(3x + 2)
b. 4(2x2 - 9x) - 3x(x + 3)
c. 3x(-3x2 - 4) - 2x2(7x - 2)
d. 5(x2 + 3x + 2)


a. x2 + 5xy + 2y
b. 5x2 - 45x
c. -23x3 - 4x2 - 12x
d. 5x2 + 15x + 10

Mathematics

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Express the function as a trigonometric function of x.sin 4x

A. 1 - 8 sin2x cos2x B. 4 sin x cos3x - 4 sin3x cos x C. cos3x - 3 sin2x cos x D. 3 sin x - 4 sin3x

Mathematics

When partners in a strategic alliance share resources or integrate complementary capabilities to build economies of scope, synergy has been created.

Answer the following statement true (T) or false (F)

Mathematics

Use I = Prt for simple interest to find the indicated quantity.P = $13,500; t = 4 months; I = $517.50. Find r.

A. 11.7% B. 7.7% C. 3.8% D. 11.5%

Mathematics

Without solving, determine the character of the solutions of the equation.x2 + 8x - 5 = 0

A. a repeated real solution B. two unequal real solutions C. two complex solutions that are conjugates of each other

Mathematics