One factor of the polynomial 3x3 + 20x2 - 21x + 88 is (X + 8). What is the other factor of the polynomial? (Note: Use long division.) OA (3x2 - 4x+11)

B. (3x - 4x)

C. (3x2 +11)

D. (3x2 + 4x - 11)

b. x- 48 =120

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

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step-by-step explanation:

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