Advertisements
Advertisements
Question
Evaluate: (2 − z) (15 − z)
Sum
Advertisements
Solution
(2 − z) (15 − z) = 2(15 − z) −z(15 − z)
= 30 − 2z − 15z + z2
= 30 − 17z + z2
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Expand the following, using suitable identity:
(–2x + 3y + 2z)2
Factorise the following:
64m3 – 343n3
Without actually calculating the cubes, find the value of the following:
(–12)3 + (7)3 + (5)3
If `x + 1/x = sqrt5`, find the value of `x^2 + 1/x^2` and `x^4 + 1/x^4`
If a + b = 10 and ab = 16, find the value of a2 − ab + b2 and a2 + ab + b2
Evaluate:
253 − 753 + 503
If a + b + c = 0, then write the value of \[\frac{a^2}{bc} + \frac{b^2}{ca} + \frac{c^2}{ab}\]
75 × 75 + 2 × 75 × 25 + 25 × 25 is equal to
If p + q = 8 and p - q = 4, find:
pq
Find the following product:
(x2 – 1)(x4 + x2 + 1)
