1.

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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Answer:

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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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