Question

Ayuda plis

x²+56=137

6x²+60=546

5x²-25=20

-2x²-79=367​

Answer 1

x²+56=137

x²=137-56

x²=81

x=√81

x=9

6x²+60=546

6x²=546-60

6x²=486

x²=486/6

x²=81

x=√81

x=9

5x²-25=20

5x²=20+25

5x²=45

x²=45/5

x²=9

x=√9

x=3

-2x²-79=367

-2x²=367+79

-2x²= 448

x²=448/-2

x²=-224

x=√-224

Answer 2

Respuesta:

a) x²+56=137

x²=137-56

x²=81

x=√81

x=9

b) 6x²+60=546

6x²= 546-60

6x²=486

x²=486:6

x=√81

x=9

c) 5x²-25=20

5x²=20+25

5x²=45

x²=45:5

x=√9

x=3

espero haberte ayudado<3