Advertisements
Advertisements
Question
The base and the altitude of a triangle are (3x – 4y) and (6x + 5y) respectively. Find its area.
Sum
Advertisements
Solution
Reqd. Area = `1/2` (base) x (altitude)
`=1/2` (3x − 4y) (6x + 5y)
`=1/2 ` (18x2 + 15xy − 24xy − 20y2)
`=1/2` (18x2 − 9xy − 20y2) sq. unit.
shaalaa.com
Multiplying a Polynomial by a Polynomial
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Multiply: 6x3 − 5x + 10 by 4 − 3x2
Multiply: 2y − 4y3 + 6y5 by y2 + y − 3
Multiply:
5p2 + 25pq + 4q2 by 2p2 − 2pq +3q2
Multiply -4xy3 and 6x2y and verify your result for x = 2 and y= 1.
Evaluate (x5) × (3x2) × (-2x) for x = 1.
Evaluate: (3x – 2)(x + 5) for x = 2.
Evaluate: 2x(3x – 5) – 5(x – 2) – 18 for x = 2.
Multiply and then verify :
−3x2y2 and (x – 2y) for x = 1 and y = 2.
Multiply: 2x2 – 4x + 5 by x2 + 3x – 7
Simplify : (5 – x) (6 – 5x) (2 -x).
