Sjsjjs

6 Questions
1 Answers

+1

954

1

+21

Help

Let $r$ and $s$ be the roots of $y^2 - 19y + 7$. Find $(r-2)(s-2)$.

Sjsjjs Jun 15, 2019

0

1553

2

+21

Help

What is the sum of the squares of the roots of $18x^2 +21x - 400$?

Sjsjjs Jun 15, 2019

0

775

1

+21

Help!

Rationalize the denominator of $\frac{3}{2\sqrt[3]{5}}$. The answer can be written in the form of $\frac{A\sqrt[3]{B}}{C}$, where $A$, $B$, and $C$ are integers, $C$ is positive, and $B$ is not divisible by the cube of any prime. Find $A+B+C$. read more ..

Sjsjjs Jun 15, 2019

0

1132

1

+21

Help?

Given that $3x + y = 10$ and $x + 3y = 14$, find $10x^2 + 12xy + 10y^2$.

Sjsjjs Jun 15, 2019

0

1155

1

+21

Help

If $(x + y)^2 = 105$ and $x^2 + y^2 = 65$, what is the value of $xy$?

Sjsjjs Jun 15, 2019

+21

+2

I’m confused. Don’t you have to find A+B+C+D?

SjsjjsJun 15, 2019