Tuesday

September 2, 2014

September 2, 2014

Posted by **Jayden Haddy** on Saturday, August 17, 2013 at 6:01am.

prove that mnb^2=(m+n)^2 ac

- maths -
**Sasuke**, Saturday, August 17, 2013 at 6:34amsum: m + n = -b/a

product: mn = c/a

substitute. when proving, you only manipulate/solve one side.

mnb^2=(m+n)^2 ac

(c/a)(b^2) =? (ac)(m+n)^2

(c/a)[a(m + n)]^2 =? (ac)(m+n)^2

(c/a)(a^2)(m+n)^2 =? (ac)(m+n)^2

(ac)(m+n)^2 = (ac)(m+n)^2

this problem is pretty much the same as the one you posted earlier. you should also check Naruto's answer on that post.

- maths -
**Writeacher**, Saturday, August 17, 2013 at 10:25amGee! Naruto and Sasuke seem to be the same person!!

**Answer this Question**

**Related Questions**

maths - If the sum of the squares of the roots of the quadratic equation ax^2 + ...

Math (Algebra) - If the ratio of the roots of the quadratic equation x^2−...

maths - Given that a and b are the roots of the quadratic equation 2x^2 - 4x +3...

maths - Prove that if p and q are rational and p is not equal to 0, the roots ...

Algebra2 - Find the polynomials roots to each of the following problems: #1) x^2...

maths - Prove that if p and q are rational and p is not equal to 0, the roots of...

Algebra - Find the number of integer quadruples (a,b,c,d) with 0\leq a,b,c,d \...

Algebra - Find the number of integer quadruples (a,b,c,d) with 0\leq a,b,c,d \...

maths - If the roots of the quadratic equation 4x^2 + px +5 = 0 are a and a+2, ...

maths - Find the value of k if the product of the roots of the quadratic ...