Question
If $a = 2$ and $b = 3$, find the value of: $a^3- b^3$
✓
Answer
Substituting $a = 2$ and $b = 3$ in the, given expression, we get:
$a^3- b^3= (2)^2- (3)^3$
$= 2 \times 2 \times 2 - 3 \times 3 \times 3$
$= 8 - 27 = - 19$
$a^3- b^3= (2)^2- (3)^3$
$= 2 \times 2 \times 2 - 3 \times 3 \times 3$
$= 8 - 27 = - 19$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Write the smallest prime number.
Write the next three natural numbers after $10999.$
→Write all possible $3-$digit numbers using the digits $6,0,4$ when. Repetition of digits is allowed
→Replace * by ' <' or ' $>$ ' in the following to make the statement true:
(-6) + (-9) * (-6) - (-9)
→(-6) + (-9) * (-6) - (-9)
Copy the following on a squared paper. A square paper is what you would have used in your arithmetic notebook in earlier classes. Then complete them such that the dotted line is the line of symmetry.
Find the lines of symmetry for the following shape:
Use the figure to name: Two pairs of intersecting lines.
Write the following in roman numerals:
$3794$
→$3794$
In the following, state if the statement is true (T) or false (F):
The vertices of a triangle are three collinear points.
A rectangle is symmetrical about the lines joining the _________ of the opposite sides.