3. The greater of two numbers is one less than 8 times the smaller. Their sum is 98 . Find the numbers.

Find \( \sum_{i=3}^{7}\left(-\left(-\frac{1}{3}\right)^{i-1}\right) \) First write out the summation: Find the answer:

Factor the polynomial function \( f(x)=4 x^{3}+20 x^{2}+29 x+10 \) Note: Write \( \left(x-\frac{a}{b}\right) \) as \( (b x-a) \) The zeros are \( f(x)= \)

Para cuáles números x la expresión \( 16 \times 2+2 x-35 \) toma valores menores que los de \( 2 x+65 \).

\( \left. \begin{array} { c } { x + y + z = 6 } \\ { \left. \begin{array} { c } { 3 x - 2 y + 6 z = 11 } \\ { x + z = 7 } \end{array} \right. } \end{array} \right. \Rightarrow \left[ \begin{array} { c c c c } { 1 } & { 1 } & { 1 } & { 6 } \\ { 3 } & { - 2 } & { 6 } & { 1 } \\ { 1 } & { 0 } & { 1 } & { 7 } \end{array} \right] \)

The total of \( x \) and 78 is 24