Advertisements
Advertisements
प्रश्न
Find the following product: (z2 + 2) (z2 − 3)
Advertisements
उत्तर
Here, we will use the identity \[\left( x + a \right)\left( x - b \right) = x^2 + \left( a - b \right)x - ab\].
\[\left( z^2 + 2 \right)\left( z^2 - 3 \right)\]
\[ = \left( z^2 \right)^2 + \left( 2 - 3 \right)\left( z^2 \right) - 2 \times 3\]
\[ = z^4 - z^2 - 6\]
संबंधित प्रश्न
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: (79)2 − (69)2
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 113 × 87
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 9.8 × 10.2
Find the following product: (y2 − 4) (y2 − 3)
Evaluate the following: 34 × 36
Evaluate the following by using identities:
10013
Simplify: (x – 2y + 3z) (x2 + 4y2 + 9z2 + 2xy + 6yz – 3xz)
By using identity evaluate the following:
`1 + 1/8 - 27/8`
Simplify:
(4.5a + 1.5b)2 + (4.5b + 1.5a)2
Expand the following, using suitable identities.
`(4/5p + 5/3q)^2`
