1)√9-144х² (√9-144х²)² 9-144х²=0 -144x²=-9 |-9) 16x²=1 x²=+-4 2)√64+х(х+16) (√64+х(х+16))² 64+х(х+16) 64+x^2+16x=0 x^2+16x+64=0 D=16^2-4*1*64=256-256=0 3)√36-4х-х² (√36-4х-х²)^2 36-4х-х² -x^2-4x+36=0 |-1) x^2+4-36=0 D=4^2-4*1*(-36)= 16+144=160 x12=-4+-160/2 x1=-4+160/2=78 x2=-4-160/2=-82 4)√3х²+2х-5 (√3х²+2х-5)^2 3х²+2х-5=0 D= 2^2-4*1*(-5)=4+20=24 x12=-2+-24/2 x1=-2+24/2=11 x2=-2-24/2=13 5)х²-16<0 х²<+-4