SOLUTION: Solve: a: (2x + 3)^2 = 5 b: 2(x - 5)^2 = 3 (mark answers a and b)

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Question 184915: Solve:
a: (2x + 3)^2 = 5
b: 2(x - 5)^2 = 3
(mark answers a and b)

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
a: (2x + 3)^2 = 5
4x^2+12x+9-5=0
4x^2+12x+4=0
4(x^2+3x+1)=0
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x=(-3+-sqrt[3^2-4*1*1])/2*1
x=(-3+-sqrt9-4)/2
x=(-3+-sqrt5)/2
x=(-3+-2.236)/2
x=(-3+2.236)/2
x=-.7639/2
x=-.38 ans.
x=(-3-2.2236)/2
x=(-5.2236)/2
x=-2.6118 ans.
b: 2(x - 5)^2 = 3