Algebra

How many real roots does the polynomial 2x³ + 8x - 7 have?

Z, U, Q, ?, L

What is the value of x in the equation 3x - 15 - 6 = 0?

If f(x) = 2x - 1 and g(x) = x², what is the value of f{g(- 3)}?

For what value of 'K' will the pair of equations 3x + 4y = 12 and kx + 12y = 30 does not have a unique solution?

x - y = 2 এবং x + y = 60 হলে, x² - y² এর মান কত?

In a triangle the length of the sides are 5, 9 and x. Which statement is always true? 

If a = 4, b = 5, c = 3, what is the value of 4ab - 6ac + 2bc?

The system of equation has how many solutions?
3x - 6y = 9
2y - x - 3 = 0

A monkey climbs a 60 m high pole. In the first minute, he climbs 6m and slips down 3m in the next minute. How much time is required by it to reach the top?

Which is the correct factor analysis of 2√2x³ + 125?

Shonghoti and Shouhardo Clubs consist of 200 and 270 members respectively. If the total member of the two clubs is 420 then how many members belong to both clubs?

For which value of P will the square root of 4x² - Px + 9 be an integer?

A student loses 1 mark for every wrong answer and scores 2 marks for every correct answer. If he answers all the 60 questions in an exam and scores 39 marks, how many of them were correct?

If x = -1, then - (x⁴ + x³ + x² + x) =?

The next number of the sequence is - 4 3 9 3 19 3 ....

Murad bought equal number of 20-paisa and 30-paisa stamps. If the total cost of the stamps was tk 10, what was the total number of stamps that Murad bought?

In a room of 36 people, 20 players play chase while 28 players play poker. How many players play both?

If a= √3/2, then √(1 + a) + √(1 - a)= ?