Advertisements
Advertisements
प्रश्न
(a + b – c)2 is equal to __________
पर्याय
(a – b + c)2
(–a – b + c)2
(a + b + c)2
(a – b – c)2
Advertisements
उत्तर
(–a – b + c)2
Explanation;
Hint:
(a + b – c)2 = a2 + b2 + c2 + 2ab – 2bc – 2ac
(–a – b + c)2 = a2 + b2 + c2 + 2ab – 2bc – 2ac
OR
(–a – b + c)2 = (–1)2 (a + b + c)2 ...(taking – 1 as common)
= (a + b – c)2
APPEARS IN
संबंधित प्रश्न
Write the coefficient of x2 in the following:
`9-12x +X^3`
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
Find the remainder when x3 + 3x2 + 3x + 1 is divided by x + 1.
In the following two polynomials, find the value of a, if x + a is a factor x4 − a2x2 + 3x −a.
Using factor theorem, factorize each of the following polynomials:
x3 + 6x2 + 11x + 6
x3 − 10x2 − 53x − 42
If x + 1 is a factor of x3 + a, then write the value of a.
If x2 + x + 1 is a factor of the polynomial 3x3 + 8x2 + 8x + 3 + 5k, then the value of k is
Factorise the following:
a4 – 3a2 + 2
