(a + b) (a + 3b) = A & # 178; + 4AB + 3B & # 178;

(a + b) (a + 3b) = A & # 178; + 4AB + 3B & # 178;

What is the value of a + B / A-B if a ＞ B ＞ 0, a & # 178; + B & # 178; = 4AB?

(a + B / A-B / A-B (a + B / a-a-b) is (a + B / A-B / A-B (a + B / A-B / a-b) is (a + B / A-B / A-B / a-b) from a + B / A-B / a-b-a-b-b-b-b-b-b (a \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\; + B & # 178; + 2Ab) / (...)

A math problem: √ (1-x & # 178;) + √ (4-x & # 178;) = √ 5 x =?

1-x²+4-x²+2√(1-x²)(4-x²)=5
That is, 2 √ (1-x & # 178;) (4-x & # 178;) = 2x & # 178;
(1-x²)(4-x²)=x^4
4-5x²+x^4=x^4
Get 5x & # 178; = 4
The solution is x = ± 2 √ 5 / 5