(4х)²+2*4х*5+5²=(4х)²-2*4х*7+7²
16х²+40х+25=16х²-56х+49
16х²+40х+25-16х²+56х-49=0
96х-24=0
96х=24
х=0,25
16x^2+40x+25=16x^2-56x+49
16x^2+40x+25-16x^2+56x-49=0
96x-24=0
x=0.25
(4х)²+2*4х*5+5²=(4х)²-2*4х*7+7²
16х²+40х+25=16х²-56х+49
16х²+40х+25-16х²+56х-49=0
96х-24=0
96х=24
х=0,25
16x^2+40x+25=16x^2-56x+49
16x^2+40x+25-16x^2+56x-49=0
96x-24=0
x=0.25