Mathematical Equivalence

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Multiply and Simplify

• $\frac{\left(5a-25\right)}{\left(a-5\right)\left(a+9\right)}$

• $\frac{5}{\left(a+9\right)}$

• $\frac{\left(5a-25\right)}{\left(a+9\right)}$

• $\frac{1}{\left(a+9\right)}$

 $3-\sqrt{121}(92+3)=$  

• -1,042

• 1,042

• -1,472

• 2,913

• 12

• 24

(7 − √2)(5 + √3)

• 35 + 7√3 − 5√2 − √6
• 29 + 7√3 − 5√2
• 35 +√10 − √7 −√6
• √50

 $\frac{2\pi^2}{\pi}$ 

 Which word best describes the simplification of the expression?

• coefficient

• continous

• irrational

• rational

• 32

After rationalize the denominator of  $\frac{7}{3\sqrt{3}-2\sqrt{2}}$ , we get the denominator as 

• 13

• 19

• 5

• 37

• A
• B
• C
• D