Question

Tolong dibantu yaa perlunya sekarang

Answer 1

(x+ 2a)(x+18a) = (2x+5a)²
x² + (18a+2a) x + (36a²) = 4x²+ 20 a x + 25 a²
x² + (20a) x + (36a²) = 4x² + (20a) x + (25a²)
36a² - 25a² = 4x² - x²
11 a² = 3x²
a² = 3/11 x²
a = x√(3/11) atau a = (ˣ/₁₁ )√33