Question

4m(2m-1)=5,then m=? tell me what the answer

Answer 1

Answer:

x = (1 ± √11)/16

x1 = (1 + √11)/16

x2 = (1 - √11)/16

Step-by-step explanation:

4m(2m-1) = 5

8m² - 4m = 5

8m² - 4m - 5 = 0

x = (-b ± √b² -4ac)/2a

x = (-(-4) ± √(-4)² -4(8)(-5))/2(8)

x = (4 ± √16 -4(8)(-5))/16

x = (4 ± √16 + 160)/16

x = (4 ± √176)/16

x = (4 ± √16*11)/16

x = (4 ± 4√11)/16

x = 4(1 ± √11)/16

x = (1 ± √11)/16

x1 = (1 + √11)/16

x2 = (1 - √11)/16