(3х-5)²+(4х-1)(4х+1)=29
9х²-30х+25+16х²+4х-4х-1=29
9х²+16х²-30х+4х-4х+25-1-29=0
25х²-30х-5=0
5х(5х-6)-5=0
5х-5=0 5х-6=0
5х=5 5х=6
х₁=1 х₂=1,2
(3х-5)²+(4х-1)(4х+1)=29
9х²-30х+25+16х²+4х-4х-1=29
9х²+16х²-30х+4х-4х+25-1-29=0
25х²-30х-5=0
5х(5х-6)-5=0
5х-5=0 5х-6=0
5х=5 5х=6
х₁=1 х₂=1,2