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Addition and Subtraction of Algebraic Expressions

Subtract 9a2-...

Question

Question 65

Subtract $9 a^{2} - 15 a + 3$ from unity.

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Solution

In order to find the solution, we will subtract $9 a^{2} - 15 a + 3$ from unity, i.e. 1.
Required expression is
$1 - (9 a^{2} - 15 a + 3) = 1 - 9 a^{2} + 15 a - 3 = - 9 a^{2} + 15 a - 2$

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Similar questions

- 5 a^{2} - 2 a + 1

4 a^{2} + 3 - 7 a

8 a - 7

The suitable statement(s) (in words) for ( $15 a \times b) - 6 < 5$ is/are:

(1) Subtract the sum of 3a and 4a from 9a

(2) Subtract (−5xy + 9yz) from (3xy − 4yz)

(3) Subtract (7m² − 2m) from (−4m − 7m²)

(4) Subtract (6a − 4b + c) from (−a + 3b − 5c)

(5) Subtract (−4x − 8y + 7) from (3y − 7x + 1)

(6) How much should be added to (5x − 3y) to get (3x − 5y)?

Question 3 (i)

Subtract:

$- 5 y^{2} f r o m y^{2}$

Question 3 (ii)

Subtract:

$6 x y f r o m - 12 x y$

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