(29+2x)(22+2x)-29*22=159.529*22+29*2x+2x*22+2x*2x-29*22=159.529*2x+22*2x+2x*2x=159.52x(29+22)+2x*2x=159.5102x+2x*2x=159.51020x+40x^2-1595=08x^2-204x+319=0x=51/4+√3239x=51/4-√3239