find the value of following expression if a = -2 and b = 3: question- a^4+2ab^2-6b^2
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Answer:
- 74
Step-by-step explanation:
a⁴ + 2ab² - 6b²
a = -2 and b = 3
= (-2)⁴ + (2 * -2 * 3²) - (6 * 3²)
= 16 + ((2 * -2 * 9) - (6 * 9)
= 16 - 36 - 54
= 16 - 90
= - 74
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