Find the roots of the following polynomial equations: (i) 3x − 7 = 0 (ii) √7x + 11 = 0 (iii) (x + 3)(x + 2) = 0
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Algebra Examples
Popular Problems Algebra Solve for x 3x-7=0
3
x
−
7
=
0
Add
7
to both sides of the equation.
3
x
=
7
Divide each term by
3
and simplify.
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Divide each term in
3
x
=
7
by
3
.
3
x
3
=
7
3
Cancel the common factor of
3
.
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Cancel the common factor.
3
x
3
=
7
3
Divide
x
by
1
.
x
=
7
3
The result can be shown in multiple forms.
Exact Form:
x
=
7
3
Decimal Form:
x
=
2.
¯
3
Mixed Number Form:
x
=
2
1
3
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