Solve this equation Help me ,thnks

Solve this equation
Help me ,thnks

Solve this equation
Help me ,thnks

Jawaban:

$sqrt{11 - x} - sqrt{x + 6} = 3 \ sqrt{11 - x} = a \ sqrt{x + 6} = b \ {a}^{2} + {b}^{2} = 17 \ a - b : = : 3 \ ab = 4 \ sqrt{(11 - x)(x + 6)} = 4 > > ^{2} \ (11 - x)(x + 6) = 16 \ {x}^{2} - 5x - 50 = 0 \ (x - 10)(x + 5) \ x = 10 : tidak : mememuhi \ maka : nilai : yang : memenuhi : adalah : \ x = - 5$

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