Question

√2.b + 1 + 1 = 4

2.√m - 3 - 1 = 9

√x - 7° = 2²

Answer 1

Explicación paso a paso:

como dije en el problema anterior, debes despejar la incógnita.

√2b+2=4

√2b=2

b= $\frac{2}{\sqrt{2}}$

b = $\frac{2}{\sqrt{2}}$ $\frac{\sqrt{2}}{\sqrt{2}}$

b= $\frac{2\sqrt{2}}{\sqrt{2} \sqrt{2}}$

b= $\frac{2\sqrt{2}}{2}$

b=$\sqrt{2}$

2√m - 3 - 1 = 9

2√m -4 = 9

2√m  = 13

√m  = $\frac{13}{2}$

m  = ($\frac{13}{2}$)²

m=$\frac{13^2}{2^2}$

m=$\frac{169}{4}$

√x - 7° = 2²

√x - 1 = 4

√x = 5

x= 5²

x=25