Find the area of a rectangle whose adjacent sides are (9x2 – x + 15) and (x2 – 3) units
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Answer:
9x⁴ – x³ - 12x² + 3x - 45 units
Step-by-step explanation:
A of rec = L * B
A of rec = (9x² – x + 15) * (x² – 3) units
= 9x⁴ – x³ + 15x² - 27x² + 3x - 45 units
= 9x⁴ – x³ - 12x² + 3x - 45 units
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