Advertisements
Advertisements
प्रश्न
(a + b – c)2 is equal to __________
विकल्प
(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 degrees of each of the following polynomials
`7x3 + 4x2 – 3x + 12`
Give one example each of a binomial of degree 35, and of a monomial of degree 100.
Find the remainder when x3 + 3x2 + 3x + 1 is divided by x.
Find the value k if x − 3 is a factor of k2x3 − kx2 + 3kx − k.
In the following two polynomials, find the value of a, if x − a is factor x6 − ax5 + x4 − ax3 + 3x − a + 2.
In the following two polynomials, find the value of a, if x − a is factor (x5 − a2x3 + 2x + a + 1).
x3 − 23x2 + 142x − 120
Factorize of the following polynomials:
x3 + 13x2 + 31x − 45 given that x + 9 is a factor
Mark the correct alternative in each of the following:
If x − 2 is a factor of x2 + 3ax − 2a, then a =
If (x + 5) and (x – 3) are the factors of ax2 + bx + c, then values of a, b and c are
