Question
The coefficient of $x^2$ in $(2 - 3x^2) (x^2 - 5)$ is:
✓
Answer
$(2 - 3x^3) (x^2 - 5)$
$= 2x^2 - 10 - 3x^4 + 15x^2$
$= -3x^4 + 17x^2 - 10$
Therefore, the coefficient of $x^2$ is $17.$
$= 2x^2 - 10 - 3x^4 + 15x^2$
$= -3x^4 + 17x^2 - 10$
Therefore, the coefficient of $x^2$ is $17.$
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