Advertisements
Advertisements
Question
Subtract:
2a2 from − 7a2
Answer in Brief
Advertisements
Solution
\[- 7 a^2 - \left( 2 a^2 \right)\]
\[ = - 7 a^2 - 2 a^2 \]
\[ = - 9 a^2\]
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Add the following:
ab − bc, bc − ca, ca − ab
What should be subtracted from 2a + 8b + 10 to get - 3a + 7b + 16?
Subtract:
\[\frac{2}{3} y^3 - \frac{2}{7} y^2 - 5 \text { from }\frac{1}{3} y^3 + \frac{5}{7} y^2 + y - 2\]
Subtract the sum of 3l − 4m − 7n2 and 2l + 3m − 4n2 from the sum of 9l + 2m − 3n2 and − 3l + m + 4n2 .....
Subtract the sum of 2x − x2 + 5 and − 4x − 3 + 7x2 from 5.
Multiply: \[\left( \frac{x}{7} + \frac{x^2}{2} \right)by\left( \frac{2}{5} + \frac{9x}{4} \right)\]
Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y, –3xz + 5x – 2xy.
Add:
7a2bc, –3abc2, 3a2bc, 2abc2
The expression 13 + 90 is a ______.
Add the following expressions:
p2 – q + r, q2 – r + p and r2 – p + q
