### 13.5 Number of Roots

Problem #

Problem Statement

Problems Similar To

1.

Find the number of roots

$$81x^{2}=4$$

2.

Find the number of roots

$$36x^{2}+12x+1=0$$

3.

Find the number of roots

$$x^{2}+16=0$$

4.

Find the number of roots

$$x^{2}+16x+64=0$$

5.

Find the number of roots

$$x^{2}+18x+162=0$$

6.

Find the number of roots

$$x^{2}+11x+24=0$$

7.

Find the number of roots

$$21x^{2}+10x+1=0$$

8.

Find the number of roots

$$90x^{2}+57x+9=0$$

9.

Find the number of roots

$$x^{2}+8x+8=0$$

10.

Find the number of roots

$$4x^{2}+4x-1=0$$

11.

Find the number of roots

$$49x^{2}+84x+26=0$$

12.

Find the number of roots

$$36x^{2}+12x+7=0$$

13.

Find the number of roots

$$64x^{2}+48x+14=0$$