Question

Resolva as equações Irracionais
a) √x+2 = 7
b) √3x+1 +6 =2
c) √5x-10 = √3x+2
d) 3√3+1 + √18
e)√3x+6 - 2 = x

Answer 1

a)(√x+8)²=7²
x+8=49
x=49-8
x=41
b)(√3x+1 )²+6=2²
3x+1+6=4
3x=4-1-6
3x=-3
 x=-3/3
x=-1
c)√5x-10²=√3x+2²
5x-10=3x+2
5x-3x=2+10
2x=12
x=12/2
x=6
d)3√3x+1²=√18²
   9.3x+1=18
    27x+1=18
27x=18-1
27x=17
x=17/27
e)√3x+6)² -2=x²
3x+6-2=x
3x-x=-6+2
2x=-4
x=-4/2
x=-2