Question

m(m-3)=15using quadratic formula​

Answer 1

Step-by-step explanation:

m(m-3)=15 ==>m^2-3m-15=0

Using quadratic formula,

x=-b±√b^2-4ac = -(-3)±√(-3)^2-4(1)(-15)

2a 2×1

x= 3±√9+60 = 3±√69

2 2

x= 3+√69 or x= 3-√69

2 2

Hope! it would help u.