Multiply the polynomials: (x β 4)(x2 + 2x β 5)
Question 16 options:
A)
x3...
Mathematics, 07.01.2021 14:00 ktprada
Multiply the polynomials: (x β 4)(x2 + 2x β 5)
Question 16 options:
A)
x3 + 6x2+ 3x β 20
B)
x3 + 6x2 + 3x + 20
C)
x3 β 2x2 β 13x β 20
D)
x3 β 2x2 β 13x + 20
Question 17 (5 points)
Subtract: (4x3 + 9xy + 8y) β (3x3 + 5xy β 8y)
Question 17 options:
A)
7x3 + 14xy
B)
x3 + 4xy
C)
7x3 + 14xy + 16y
D)
x3 + 4xy + 16y
Question 18 (5 points)
What are the real solutions to the equation 5x2 + 29x + 20 = 0?
Question 18 options:
A)
x = β5, x = 4β5
B)
x = β4β5, x = 5
C)
x = 4β5, x = 5
Answers: 3
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