Question

х^2+(х+14)^2=34^2
ПОМОГИТЕ СРОЧНО

Answer 1

(a+b)²=a²+2ab+b²

х²+(х+14)²=34²
х²+x²+28x+196=1156
2x²+28x-960=0
x²+14x-480=0
D=14²-4*1*(-480)=196+1920=2116
√D=46
$x_1= frac{-14-46}{2} = frac{-60}{2} =-30 \ x_2= frac{-14+46}{2} = frac{32}{2} =16$