Advertisements
Advertisements
प्रश्न
Factorise the following expression.
y2 − 4
Advertisements
उत्तर
y2 − 4
Let us identify a and b as the difference of squares.
a = y2
b = 22 = 4
= (y)2 − (2)2
a2 − b2 = (a + b) (a − b)
(y)2 − (2)2 = (y + 2) (y − 2)
संबंधित प्रश्न
Factorize each of the following algebraic expressions:
2r(y − x) + s(x − y)
Factorize each of the following algebraic expressions:
9a(6a − 5b) −12a2(6a − 5b)
Factorize each of the following algebraic expression:
p2q2 − 6pqr + 9r2
Factorize each of the following algebraic expression:
25 − p2 − q2 − 2pq
Factorize each of the following algebraic expression:
x2 − y2 + 6y − 9
Factorize each of the following algebraic expression:
49 − x2 − y2 + 2xy
Factorize each of the following algebraic expression:
x2 − 11x − 42
Factorise the following expression.
`"x"^2-1/"x"^2`
Factorise the following expression.
a2b − ab
