Advertisements
Advertisements
Question
Solve the following equation by factorization
6p2+ 11p – 10 = 0
Solution
6p2+ 11p – 10 = 0
⇒ 6p2 + 15p – 4p – 10 = 0
⇒ 3p(2p + 5) – 2(2p + 5) = 0
(2p + 5) (3p - 2) = 0
Either 2p + 5 = 0, then 2p = -5 ⇒ p = `(-5)/(2)`
or 3p - 2 = 0, then 3p = 2 ⇒ p = `(2)/(3)`
Hence p = `(-5)/(2), (2)/(3)`.
APPEARS IN
RELATED QUESTIONS
The sum of two numbers is 48 and their product is 432. Find the numbers?
Solve the following quadratic equations by factorization:
`(1 + 1/(x + 1))(1 - 1/(x - 1)) = 7/8`
Solve the following quadratic equations by factorization:
\[\frac{x - 2}{x - 3} + \frac{x - 4}{x - 5} = \frac{10}{3}; x \neq 3, 5\]
Is there any real value of 'a' for which the equation x2 + 2x + (a2 + 1) = 0 has real roots?
Three consecutive natural numbers are such that the square of the first increased by the product of other two gives 154. Find the numbers.
The sum of the squares of three consecutive natural numbers is 110. Determine the numbers.
In a two digit number, the unit’s digit is twice the ten’s digit. If 27 is added to the number, the digit interchange their places. Find the number.
In each of the following, determine whether the given values are solution of the given equation or not:
x2 - 3`sqrt(3)` + 6 = 0; x = `sqrt(3)`, x = -2`sqrt(3)`
Two pipes running together can fill a tank in `11(1)/(9)` minutes. If one pipe takes 5 minutes more than the other to fill the tank, find the time in which each pipe would/fill the tank.
Solve the following equation by factorisation :
`sqrt(x + 15) = x + 3`