Answer:
![\huge{ \fbox{ \sf{ - 2y - 30}}}](https://tex.z-dn.net/?f=%20%5Chuge%7B%20%5Cfbox%7B%20%5Csf%7B%20-%202y%20-%2030%7D%7D%7D)
Step-by-step explanation:
![\star{ \sf{ \: (4y - 10) - (6y + 20)}}](https://tex.z-dn.net/?f=%20%5Cstar%7B%20%5Csf%7B%20%5C%3A%20%284y%20-%2010%29%20-%20%286y%20%2B%2020%29%7D%7D)
![\text{Step \: 1 }\: : \sf{While \: subtracting \: sign \: of \: each \: term \: of \: the \: second \: expression \: changes}](https://tex.z-dn.net/?f=%20%5Ctext%7BStep%20%5C%3A%201%20%7D%5C%3A%20%20%3A%20%20%5Csf%7BWhile%20%5C%3A%20subtracting%20%5C%3A%20sign%20%5C%3A%20of%20%5C%3A%20each%20%5C%3A%20term%20%5C%3A%20of%20%5C%3A%20the%20%5C%3A%20second%20%5C%3A%20expression%20%5C%3A%20changes%7D)
![\hookrightarrow{ \sf{4y - 10 - 6y - 20}}](https://tex.z-dn.net/?f=%20%5Chookrightarrow%7B%20%5Csf%7B4y%20-%2010%20-%206y%20-%2020%7D%7D)
![\text{Step \: 2 \: : \sf Collect \: like \: terms}](https://tex.z-dn.net/?f=%20%5Ctext%7BStep%20%5C%3A%202%20%5C%3A%20%20%3A%20%20%5Csf%20Collect%20%5C%3A%20like%20%5C%3A%20terms%7D)
![\sf{Like \: terms \: are \: those \: which \: have \: the \: same \: base.}](https://tex.z-dn.net/?f=%20%20%5Csf%7BLike%20%5C%3A%20terms%20%5C%3A%20are%20%5C%3A%20those%20%5C%3A%20which%20%5C%3A%20have%20%5C%3A%20the%20%5C%3A%20same%20%5C%3A%20base.%7D)
![\hookrightarrow{ \sf{4y - 6y - 10 - 20}}](https://tex.z-dn.net/?f=%20%5Chookrightarrow%7B%20%5Csf%7B4y%20-%206y%20-%2010%20-%2020%7D%7D)
![\hookrightarrow{ \sf{ - 2y - 10 - 20}}](https://tex.z-dn.net/?f=%20%5Chookrightarrow%7B%20%5Csf%7B%20-%202y%20-%2010%20-%2020%7D%7D)
![\text{Step \: 3 \: : \sf{Calculate}}](https://tex.z-dn.net/?f=%20%5Ctext%7BStep%20%5C%3A%203%20%5C%3A%20%20%3A%20%20%5Csf%7BCalculate%7D%7D)
![\underline{ \text{Remember!}} : \sf{The \: negative \: integers \: are \:always \: added \: but \: posses \: the \: negative \: ( - ) \: sign.}](https://tex.z-dn.net/?f=%20%5Cunderline%7B%20%5Ctext%7BRemember%21%7D%7D%20%20%3A%20%20%5Csf%7BThe%20%5C%3A%20negative%20%5C%3A%20integers%20%5C%3A%20are%20%5C%3Aalways%20%5C%3A%20added%20%5C%3A%20but%20%5C%3A%20posses%20%5C%3A%20the%20%5C%3A%20negative%20%5C%3A%20%28%20-%20%29%20%5C%3A%20sign.%7D)
![\hookrightarrow{ \sf{ - 2y - 30}}](https://tex.z-dn.net/?f=%20%5Chookrightarrow%7B%20%5Csf%7B%20-%202y%20-%2030%7D%7D)
Hope I helped!
Best regards! :D
~![\sf{TheAnimeGirl}](https://tex.z-dn.net/?f=%20%5Csf%7BTheAnimeGirl%7D)
The answer for #2 is A
And the answer for #3 is B
Answer:
No real roots
Step-by-step explanation:
Given
7x² + 5x + 1 = 0 ← in standard form
with a = 7, b = 5, c = 1
To determine the nature of the roots use the discriminant
Δ = b² - 4ac
• If b² - 4ac > 0 then roots are real and distinct
• If b² - 4ac = 0 then roots are real and equal
• If b² - 4ac < 0 then the roots are not real
Here
b² - 4ac = 5² - (4 × 7 × 1) = 25 - 28 = - 3
Thus the 2 roots are not real
Answer:No solution
Explanation: There is no solution because x was eliminated in the last step of solving for x. Since we were left with x not being available to equal three, it shows it’s a no solution problem. Hope this helped!
Answer:
D.)
Step-by-step explanation:
because when you have numbers inside the parentheses, you have to multiply both of those numbers by the number to the right of the parentheses, not just the X.