Question
Subtract: -
$-11 x^2 y^2+7 x y-6$ from $9 x^2 y^2-6 x y+9$
$-11 x^2 y^2+7 x y-6$ from $9 x^2 y^2-6 x y+9$
✓
Answer
$\quad-11 x^2 y^2+7 x y-6$ from $9 x^2 y^2-6 x y+9$
$=9 x^2 y^2-6 x y+9-\left(-11 x^2 y^2+7 x y-6\right)$
$=9 x^2 y^2-6 x y+9+11 x^2 y^2-7 x y+6$
$=20 x^2 y^2-13 x y+15$
$=15-13 x y+20 x^2 y^2$
$=20 x^2 y^2-13 x y+15$
$=9 x^2 y^2-6 x y+9-\left(-11 x^2 y^2+7 x y-6\right)$
$=9 x^2 y^2-6 x y+9+11 x^2 y^2-7 x y+6$
$=20 x^2 y^2-13 x y+15$
$=15-13 x y+20 x^2 y^2$
$=20 x^2 y^2-13 x y+15$
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 first four products of two numbers with difference 4 starting from in the following order:
Add:
$2 x^2,-3 x^2, 7 x^2$
→$2 x^2,-3 x^2, 7 x^2$
Write the reciprocals of the following numbers:
7
7
Subtract:
a - 2b - 3c from -2a + 5b - 4c
a - 2b - 3c from -2a + 5b - 4c
Arrange the following decimals in ascending order:
5.8, 7.2, 5.69, 7.14, 5.06
5.8, 7.2, 5.69, 7.14, 5.06
Add:
$2 x^3-3 x^2+7 x-8,-5 x^3+2 x^2-4 x+1,3-6 x+5 x^2-x^3$
→$2 x^3-3 x^2+7 x-8,-5 x^3+2 x^2-4 x+1,3-6 x+5 x^2-x^3$
Figure represents a cuboid. The lengths of the edges AE, EF and FG are indicated as l, b and h respectively. Indicated the lengths of all other edges.
Find the difference:
$6\frac{2}{3}-3\frac{3}{4}$
→$6\frac{2}{3}-3\frac{3}{4}$
If p = -2, q = -1 and r = 3, find the value of:
p - q - r
p - q - r
Using a set square and a ruler, test whether l || m in the following cases: