Advertisements
Advertisements
Question
Multiply: 2a2 − 5a − 4 and −3a
Sum
Advertisements
Solution
−3a (2a2 − 5a − 4)
= −3a × 2a2 − 5a × −3a − 4 × −3a
= −6a3 + 15a2 + 12a
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the areas of rectangles with the following pairs of monomials as their lengths and breadths, respectively.
(p, q); (10m, 5n); (20x2, 5y2); (4x, 3x2); (3mn, 4np)
Obtain the product of a, 2b, 3c, 6abc.
Multiply: a2, ab and b2
Multiply: `-3/2"x"^5"y"^3` and `4/9"a"^2"x"3"y"`
Multiply: `2"a"^3-3"a"^2"b"` and `-1/2"ab"^2`
Multiply (4x2 + 9) and (3x – 2)
Three consecutive integers, when taken in increasing order and multiplied by 2, 3 and 4 respectively, total up to 74. Find the three numbers.
Multiply the following:
15xy2, 17yz2
Multiply the following:
(p + 6), (q – 7)
Multiply the following:
6mn, 0mn
