Question
Subtract $9 a^2-15 a+3$ from unity.
✓
Answer
In order to find solution, we will subtract $9 a^2-15 a+3$ from unity,
i.e. $1.$ Required 'expression is
$1-\left(9 a^2-15 a+3\right)$
$=1-9 a 2+15 a-3$
$=-9 a^2+15 a-2$
i.e. $1.$ Required 'expression is
$1-\left(9 a^2-15 a+3\right)$
$=1-9 a 2+15 a-3$
$=-9 a^2+15 a-2$
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