Advertisements
Advertisements
प्रश्न
Simplify : (3y + 4z) (3y – 4z) + (2y + 7z) (y + z)
बेरीज
उत्तर
(3y + 4z) (3y – 4z) + (2y + 7z) (y + z)
= 3y (3y – 4z) + 4z (3y – 4z) + 2y (y + z) (y + z)
= 9y2 – 12yz + 12yz – 16z2 + 2y2 + 2yz + 7yz + 7z2
= (9+2)y2 + (–12 + 12 + 2 + 7)yz + (–16 + 7)z2
= 11y2 + 9yz – 9z2
shaalaa.com
Multiplying a Polynomial by a Polynomial
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Multiply: 6x3 − 5x + 10 by 4 − 3x2
Multiply: 5p2 + 25pq + 4q2 by 2p2 − 2pq +3q2
Simplify : (7x – 8) (3x + 2)
The base and the altitude of a triangle are (3x – 4y) and (6x + 5y) respectively. Find its area.
Evaluate (3x4y2) (2x2y3) for x = 1 and y = 2.
Evaluate: (3x – 2)(x + 5) for x = 2.
Evaluate: (2x – 5y)(2x + 3y) for x = 2 and y = 3.
Evaluate: xy2(x – 5y) + 1 for x = 2 and y = 1.
Multiply: (ab – 1) (3 – 2ab)
Simplify : (5 – x) (6 – 5x) (2 -x).
