Advertisements
Advertisements
Question
Factorise the following:
a2 + 10a – 600
Solution
Product = – 600, sum = 10
Split the middle term as 30a and – 20a
a2 + 10a – 600 = a2 + 30a – 20a – 600
= a(a + 30) – 20(a + 30)
= (a + 30)(a – 20)
APPEARS IN
RELATED QUESTIONS
Write the degrees of the following polynomials:
7
Write the degrees of the following polynomials
0
Identify constant, linear, quadratic and cubic polynomials from the following polynomials:
`g(x)=2x^3-7x+4`
f(x) = x4 − 3x2 + 4, g(x) = x − 2
\[f(x) = 3 x^4 + 2 x^3 - \frac{x^2}{3} - \frac{x}{9} + \frac{2}{27}, g(x) = x + \frac{2}{3}\]
If x − 2 is a factor of the following two polynomials, find the values of a in each case x5 − 3x4 − ax3 + 3ax2 + 2ax + 4.
y3 − 7y + 6
When x3 − 2x2 + ax − b is divided by x2 − 2x − 3, the remainder is x − 6. The values of a and b are respectively
Factorise the following:
y2 – 16y – 80
If (x + 5) and (x – 3) are the factors of ax2 + bx + c, then values of a, b and c are
