Mathematics, 11.06.2020 17:57 hunterallan569
Jorge solves the equation 4x - (x + 20) + 6 = 2(3x + 8) using the steps below.
Step 1: 4x - x + 2 + 6 = 6x + 16
Step 2: 3x + 8 = 6x + 16
Step 3: 8 - 16 = 6x - 3x
Step 4: -8 = 3x
Step 5: -8/3 = x
Jorge verifies his solution by substituting -8/3 into the original equation for x. He determines that his solution is incorrect. Which best describes Jorge’s error?
A. Jorge distributed incorrectly.
B. Jorge incorrectly combined like terms.
C. Jorge incorrectly applied the addition and subtraction properties of equality.
D. Jorge incorrectly applied the multiplication and division properties of equality.
Answers: 2
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Mathematics, 22.06.2019 00:00
If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0
Answers: 3
Jorge solves the equation 4x - (x + 20) + 6 = 2(3x + 8) using the steps below.
Step 1: 4x - x + 2 +...
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