pls solve this question!!
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Answer:
3.75 is the answer
Step-by-step explanation:
9a⁴ + 16b⁴ - 24a²b²
put a = 1/2 and b = 4/5
9(1/2)⁴ + 16(4/5)⁴ -24(1/2)²(4/5)²
= 9(1/16 ) + 16 (256/625) - 24(1/4)(14/25)
= 9/16 + 4096/625 - 336/100
= 0.56 + 6.55 - 3.36
= 3.75
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