Question

find m if x^2-15-m(2x-8) have equal roots


​

Answer 1

x²-15-m(2x-8)=0

x²-15-2mx+8m=0

x²-2mx+8m-15=0

roots are equal so, = 0

Therefore, 4m²-32m+60=0

Therefore, m=5, m=3

Hope this helps

Thank you