Answer: C=4
Step-by-step explanation:
5(5c-1)-1 = 23c + 6
1. Using PEMDAS. You know to do parenthesis first which is 5(5c-1)
Using distributive property you will get 25c-1-1 = 23c + 6
2. Simply on both sides and get 25c-2=23c+6
3. Using the rule that whatever you do on one side of the equal sign, you do on the other you can subtract 23c from both sides and get 2c-2=6. Then add 2 on both sides and get 2c=8
4. Divide both sides by 2 to get rid of the 2 and you get c=4
They are equivalent. combine like terms on the first one and 9x-4x+25 can be simplified to 5x+25.
Answer:
answer : B
Step-by-step explanation:
(14x2 – 14) + (–10x2 – 10x + 10) = (14x² - 10x²) -10x + (-14+10)
(14x2 – 14) + (–10x2 – 10x + 10) = = 4x² - 10x - 4
answer : B
Hello there,
The equation that we have to factor is as follows:
2x² + 3x - 54
In order to factor this we first multiply (-54) by 2 and try to find two factor pairs that can be add up to 3.
For this we would use 12 * -9 which gives you -108 when multiplied and when added you would get 3.
2x² + 12x - 9x -54
2x(x + 6) -9(x +6)
(2x - 9) (x + 6)
Now the factor pairs would be: (2x - 9)(x + 6)
Hope I helped,
Amna
