Answer:
3x^2 - 9x + 8
Step-by-step explanation:
To simplify:
- Distribute the -1 into the second term.
- Collect and combine like-terms (terms with the same variables or powers)
The expression can be rewritten has (2x^2 - 5x + 3) -1(-x^2 + 4x - 5)
After distributing the -1, the equation becomes:
- (2x^2 - 5x + 3) + (x^2 - 4x + 5)
The like-terms are:
- 2x^2 and x^2
- -5x and -4x
- 3 and 5
Combine the like-terms:
- 2x^2 + x^2 = 3x^2
- -5x - 4x = -9x
- 3 + 5 = 8
Substitute the simplified like-terms into the expression, in descending order:
Consecutive integers are 1 more than the other.
If one of them is x.
The three would be x, x + 1, x + 2
Since the sum are 138
x + (x + 1) + (x +2) = 138
x + x + 1 + x +2 = 138
x + x + x + 1 + 2 = 138
3x + 3 = 138
3x = 138 - 3
3x = 135
x = 135/3
x = 47.
So the numbers are, x, x + 1, x + 2, = 47, 47 + 1 = 48, 47 + 2 = 49
The integers are 47, 48, and 49.
Answer:
C.
Step-by-step explanation: im pretty sure because if you look at Ed its 5 and then if you add the same sides twice its 10 hopefully im right
Answer:
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Step-by-step explanation:
Correct me if im wrong
Answer:
3.38 cm
Step-by-step explanation:
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