Thursday

August 28, 2014

August 28, 2014

Posted by **Amanda** on Sunday, November 4, 2007 at 10:34am.

the square root of a+4 plus the square root of a-3 equals 7

- pre-calc -
**bobpursley**, Sunday, November 4, 2007 at 11:20amsqrt (a+4) + sqrt (a-3)=7

with seven on the right, the sqrt have to add to integers, which means each is an integer.

So a has to be an integer, and a+4 and a-3 is an integer with a ingeter square root.

Possible a:

Start with 1, and see if a-4 and a-3 have integer square roots. It wont take you more than 20 seconds to find it.

**Related Questions**

Pre Calc!!!!!!!!!! test tom!! - Square root of x is the equation. Translate: ...

pre-calc - How do you solve this equation? the square root of x-3 minus 3 times ...

Math - What is the square root of 12? 3.464 Well, that's true, but you could ...

Algebra - Use the quadratic formula to solve the equation. Give exact answers: ...

Math simplifying mixed radicals - Please help me simplify these following mixed ...

Algebra - Rationalize each expression by building perfect nth root factors for ...

Math ~CHECK MY ANSWER~ - 1) Which of these is a rational number? a. Pi b. Square...

Year 11 maths - My teacher said If x-2(square root xy)=9-4(square root 2) so ...

Math simplifying mixed radicals - Please help me simplify these following mixed...

Math - Just need some help... Directions: Multiply or raise to the power as ...