Question

como resolver m² - 9m = -14

Answer 1

m² - 9m = -14
m² - 9m + 14 = 0

S = 9
P = 14
S : {7, 2}

Answer 2

m²-9m=-14
m²-9m+14=0
A=1 B=-9 C=14

Δ=b²-4ac
Δ=-9²-4*1*14
Δ=81-56= 25

m=(-b+-√Δ)/2*a
m=-(-9)+-5/2
m=(81+-9)/2
m1=81+9/2=90/2=45
m2=81-9/2=76,5