Question

Me ajudem rápido por favor preciso entregar hj URGENTE

Answer 1

Resposta:

a) x²+3=84

x²=81

x=9

b)x²-9=27

x²=36

x=6

c)x²+13=77

x²=64

x=8

d)x²-8=113

x²= 121

x=11

e)x²+74=243

x²= 169

x=13

f)$\sqrt{x} +1=1$

$\sqrt{x} =0$x=0

g)$\sqrt{x} -6=8\\\sqrt{x} =14\\x=\sqrt{14}$

h)$\sqrt{x} -4= 10\\\sqrt{x} =6\\x=\sqrt{6}$

i)$\sqrt{x} +7=24\\\sqrt{x} =17\\x=\sqrt{17}$

j)$\sqrt{x} -3=30\\\sqrt{x} =27\\x=\sqrt{27\\} \\x=3\sqrt{3}$