2х^2 -8х-10=0 ; х^2-16=0

Question

2х^2 -8х-10=0 ; х^2-16=0

Answer 1

2х^2-8x-10=0 |2
x^2-4x-5=0
x1=-1
x2=5
x^2-16=0
x^2=16
x1=4
x2=-4

Answer 2

2x^2-8x-10=0
Д= 144
X1 =5
X2=-1

x^2-16=0
X^2=16
x=4