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Amiraneli [1.4K]
3 years ago
14

Place the following steps in order to complete the square and solve the quadratic equation,x^2+7=0

Mathematics
1 answer:
forsale [732]3 years ago
6 0
X^2+7=0
this can be written as:
x^2+0x+7=0
To solve using completer square we proceed as follows:
x^2+0x=-7
but
c=(b/2a)^2
c=(0/2*1)^2=0
hence
x^2+0x+0=-7+0
this will be simplified as:
x^2=-7
getting the square root of both sides gives us:
sqrt(x^2)=sqrt(-7)
x=+/-√-7
but √-1=i
hence our answer will be:
x=+/-7i
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