A quadratic equation is written in the form
Looking at the second, third, and fourth options, we see that the highest powers are greater than two, which automatically disqualifies them from being quadratics (since the highest power in a quadratic is 2).
This makes the first option the correct choice since the expansion of the equation gives 
3x² - 4 → A
(f + g)(x) = f(x) + g(x) = 2x² + 3 + x² - 7 = 3x² - 4
Answer:
2.325
Step-by-step explanation:
i used a calculator ,i think i did it right lol
Answer:
A. Complete the missing entries in this Excel Regression tool output. Enter negative values as negative numbers. ANOVA df SS MS F Significance F Regression 2 .8811 52.4464 Residual 7 .1179 .0168 Total Coefficients Standard Error t Stat P-value Intercept X1 X2.