Advertisements
Advertisements
प्रश्न
Find the following product: (x2 + 4) (x2 + 9)
Advertisements
उत्तर
Here, we will use the identity \[\left( x + a \right)\left( x + b \right) = x^2 + \left( a + b \right)x + ab\].
\[\left( x^2 + 4 \right)\left( x^2 + 9 \right)\]
\[ = \left( x^2 \right)^2 + \left( 4 + 9 \right)\left( x^2 \right) + 4 \times 9\]
\[ = x^4 + 13 x^2 + 36\]
APPEARS IN
संबंधित प्रश्न
Simplify the following using the identities: \[\frac{198 \times 198 - 102 \times 102}{96}\]
Evaluate the following: 103 × 96
Expand the following:
(−p + 2q + 3r)2
Using algebraic identity, find the coefficients of x2, x and constant term without actual expansion
(x + 5)(x + 6)(x + 7)
Evaluate the following by using identities:
983
Simplify:
(3x + 2y)2 + (3x – 2y)2
Expand the following, using suitable identities.
`(4/5a + 5/4b)^2`
Using suitable identities, evaluate the following.
47 × 53
Using suitable identities, evaluate the following.
105 × 95
Carry out the following division:
–121p3q3r3 ÷ (–11xy2z3)
