Advertisements
Advertisements
प्रश्न
Factorised form of p2 – 17p – 38 is ______.
विकल्प
(p – 19)(p + 2)
(p – 19)(p – 2)
(p + 19)(p + 2)
(p + 19)(p – 2)
उत्तर
Factorised form of p2 – 17p – 38 is (p – 19)(p + 2).
Explanation:
We have, p2 – 17p – 38
= p2 – 19p + 2p – 38 ...[By splitting the middle term, so that the product of their numerical coefficients is equal constant term]
= p(p – 19) + 2(p – 19)
= (p – 19)(p + 2) ...[∵ x2 + (a + b)x + ab = (x + a)(x + b)]
APPEARS IN
संबंधित प्रश्न
Write the degree of the following polynomial: 2y2z + 9yz3
Find the sum of: 9x2 – 6x + 7, 5 – 4x and 6 – 3x2
Find the sum of: – 4x2 and +7x
Enclose the given term in bracket as required:
x – y – z = x - {…….)
Simplify: `10 – {4"a" – (7 – bar ("a" - 5) - (5"a" - bar(1 + "a")))`
The coefficient of leading term of the expression 3z2y + 2x – 3 is _________
Identify the numerical coefficient of term (other than constant) in the following expression:
100m + 1000n
Identify the numerical coefficient of term (other than constant) in the following expression:
2(l + b)
Write the coefficient of x2 in the following:
x3 – 2x2 + 3x + 1
Amisha has a square plot of side m and another triangular plot with base and height each equal to m. What is the total area of both plots?
