Answer:
(5a - 8) + (2a² + 2a − 1) = 2a² + 7a - 9 - <u>correct.</u>
Step-by-step explanation:
(5a - 8) + (2a² + 2a − 1) = 2a² + 7a - 9 - <u>correct;</u>
(6² +6b-4) (3b +6²) = 26² +36-4 - incorrect (correct is: 18b²+...36²);
(9c-4c²) - (2c² + c) = -6c² + 10c - incorrect (correct is: -6c² + 8c).
Part A. 1 2/5 . or 1.4 because 5/10 = 1/2. 45/50 = 9/10. 1/2+9/10= 1 2/5 part B. no. explained in part a. part C. 9/10
Answer and Step-by-step explanation:
Solve for x.
Distribute the 2.
4x - 5 = 4x - 2 - 3
Combine like terms
4x - 5 = 4x - 5
Add 5, and subtract 4x.
0 = 0
There are infinitely many solutions, meaning any value plugged in for x will result in the equation being true.
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