If the sum of the roots of the quadratic equation $5x^2+bx+4=0 is 9, the find the value of b.

The Sum of the roots of the quadratic equation $4x^2+7x-21=0$ is:

If $\theta$ is an acute angle, find the denominator A, when $(cosec\theta-cot\theta)^2=\frac{1-cot\theta}{A}$

If x + y = 11, then $(-1)^x + (-1)^y$ is equal to _____

(where x, y are whole numbers).

Is $(x-2)^2+1=2x-3$ a quadratic equation, then find the roots

Find the nature of roots of the quadratic equation:

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

Examine the nature of the roots of the following quadratic equation:

$3x^2+8x+4=0$

Solve $x^2+5x+6$

If (a + b + c) = 17, and (a² + b² + c²) = 101, find the value of (a - b)² + (b - c)² + (c - a)².

If $(4y-\frac{4}{y})=11$ , find the value of $(y^2+\frac{1}{y^2})$.

If $x-\frac{1}{x} = 3$, then the value of $x^3-\frac{1}{x^3}$ is

f (a + b + c) = 12, and (a² + b² + c²) = 50, find the value of (a³ + b³ + c³ - 3abc)

If, $(x+\frac{1}{x})=4$, then the value of $x^4+\frac{1}{x^4}$ is:

If x + y = 4, then the value of (x³ + y³ + 12xy) is

If $x^4+\frac{1}{x^4}=34$, then the value of $(x-\frac{1}{x})^2$ will be

If a is positive and $a^2+\frac{1}{a^2}=7$, thenfind $a^3+\frac{1}{a^3}$.

If a = 299, b = 298, c = 297 then the value of 2a³ + 2b³ + 2c³ – 6abc is:

If a = 0.125 then what is value of $\sqrt{4a^2-4a+1}+3a$ ?

The value of \$\frac{6.35 \times 6.35 \times 6.35 + 3.65 \times 3.65 \times 3.65}{63.5 \times 63.5 + 36.5 \times 36.5 - 63.5 \times 36.5}$ is equal to

If x + y + z = 19, xyz = 216 and xy + yz + zx = 114, then the value of $\sqrt{x^3+y^3+z^3+xyz}$ is.

The value of $\frac{5.35\times{5.35}\times{5.35}+3.65\times{3.65}\times{3.65}}{53.5\times{53.5}+36.5\times{36.5}-53.5\times{36.5}}$ is:

If $\sqrt{11-3\sqrt{8}}=a+b\sqrt{2}$, then what is the value of (2a+3b)?

If (10a³ + 4b³) : (11a³ - 15b³) = 7 : 5, then (3a + 5b) : (9a - 2b) =?

If 27(x + y)³ - 8(x - y)³ = (x + 5y)(Ax² + By² + Cxy), then what is the value of (A + B - C)?

If a + b + c = 6, a³ + b³ + c³ - 3 abc = 342, and a² + b² + c² = 50, then what is the value of ab + bc + ca?

If a and b are two positive real numbers such that a + b = 20 and ab = 4, then the value of a³ + b³ is:

If a = 355, b = 356, c = 357, then find the value of a³ + b³ + c³ - 3abc.