Topics
>> Elementary Mathematics >> Quadratic Equations
11). $$\Large 3x^{2}+8x+4=0; 4y^{2}-19y+12=0$$
 A). If x>y B). $$\Large If \ x\ge y$$ C). lfx D). $$\Large If \ x \le y$$
12). $$\Large x^{2}-x-12=0; y^{2}+5y+6=0$$
 A). If x>y B). $$\Large If \ x\ge y$$ C). lfx D). $$\Large If \ x \le y$$
13). $$\Large x^{2}-8x+15=0; y^{2}-3y+2=0$$
 A). If x>y B). $$\Large If x\ge y$$ C). lfx D). $$\Large If x \le y$$
14). $$\Large x^{2}-32=112; y-\sqrt{169}=0$$
 A). If x>y B). $$\Large If x\ge y$$ C). lfx D). If x = y or relation cannot be established
15). $$\Large x-\sqrt{121}=0; y^{2}-121=0$$
 A). If x>y B). $$\Large If \ x\ge y$$ C). lfx D). If x = y or relation cannot be established

16). $$\Large x^{2}-16=0; y^{2}-9y+20=0$$
 A). If x>y B). $$\Large If \ x\ge y$$ C). lf x D). $$\Large If \ x \le y$$
17). If $$\Large x^{2} = 6 + \sqrt{6+\sqrt{6 + \sqrt{6+.... ...... \infty}}}$$ then what is one of the values of x equal to?
 A). 6 B). 5 C). 4 D). 3
18). The sum of a number and its reciprocal is $$\Large \frac{10}{3}$$, then the numbers are
 A). $$\Large 3, \frac{1}{3}$$ B). $$\Large 3, -\frac{1}{3}$$ C). $$\Large -3, \frac{1}{3}$$ D). $$\Large -3, -\frac{1}{3}$$
19). In solving a problem, one student makes a mistake in the coefficient of the first degree term and obtains -9 and -1 for the roots. Another student makes a mistake in the constant term of the equation and obtains 8 and 2 for the roots. The correct equation was
 A). $$\Large x^{2}+10x+9=0$$ B). $$\Large x^{2}-10x+16=0$$ C). $$\Large x^{2}-10x+9=0$$ D). None of the above.
20). The difference in the roots of the equation $$\Large 2x^{2}-11x+5=0$$ is
 A). 4.5 B). 4 C). 3.5 D). 3
Go to :
Total Pages : 7

Recent Activities