Tuesday

October 21, 2014

October 21, 2014

Posted by **Gabby** on Thursday, July 29, 2010 at 11:53pm.

- algebra -
**Reiny**, Friday, July 30, 2010 at 7:27am(√2 + 3√5)(√2 - 3√5)

this has the pattern for the difference of squares

(a + b)(a - b) = a^2 - b^2

so your question has an answer of

(√2)^2 - (3√5)^2

= 2 - 45

= -43

**Answer this Question**

**Related Questions**

Calc - How close is the semi circle y= sqr.root of 16-x^2 to the point (1, sqr....

Algebra 2 - Ok, so I'm trying to find the inverse of each function. We're ...

Algebra2/Trig - sqr(x^2-4)+(x^2)/x^2+1 I got ((x^2+1)*sqr(x^2-4)+x^2)/x^2+1 But ...

Math - Find the quotient function f/g for f(x)=sqr(x+1) and g(x)= sqr( x-1). My...

Math - Find the quotient function f/g for f(x)=sqr(x+1) and g(x)= sqr( x-1). My ...

algebra - sqr root of 3a + 9(sqr root of 27a^3)

math - I have a question I have been working on since yesterday and I am not ...

Algebra - For what values does the sqr root of 2x = x square root 2 ?

algebra 1 - sqr 10 times sqr 16 over sqr 5

Algebra 2 - f(x) = sqr.root of x/6