Mschlagel Mschlagel

23-03-2017
Mathematics

Answered

Solve the equation: 4x2 = 9

A{3/2, -3/2}
B{-2, -3}
Cno solution
D{2/3, -2/3}

Solve the following equation: x2 + 14x + 49 = 0

Please use {a,b} form. a and b are your solutions.

Verified Answer :

Anonymous Anonymous

23-03-2017

4x² = 9
⇒ x² = 9/4
⇒ x = {3/2, -3/2}
A is the answer.

---------------------------------
x² + 14x + 49 = 0
x² + 27x + 49 = 0
(x+7)² = 0
x = {-7, -7}

Hope it helps!

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