is 5x^2=90 a quadratic equation
Answers
Answered by
0
Answer:
Usually to solve a quadratic equation, we make it equal to 0.
However in this case, as there is no term in x, we can use a different method.
5
x
2
=
90
÷
5
x
2
=
18
find the
±
√
x
=
±
√
18
x
=
+
3
√
2
or
x
=
−
3
√
2
If the constant had been a perfect square we could have factorised as difference of two squares, but 18 is not a square.
Step-by-step explanation:
Answered by
0
Answer:
90
Step-by-step explanation:
5×18=90 a equation.5multiply into 18is 90
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