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lions [1.4K]
3 years ago
12

Find the value of the expression 4a^4 − 2b^2 + 40 when a = 2 and b = 7

Mathematics
2 answers:
Effectus [21]3 years ago
7 0

Answer:6

Step-by-step explanation:

4(2)^4 − 2(7)^2 + 40

4(16)-2(7)^2+40

64-2(49)+40

64-98+40

-34+40

6

Flura [38]3 years ago
4 0

Answer:

6

Step-by-step explanation:

4a^4 - 2b^2 + 40

Put a = 2 and b = 7

4(2)^4 - 2(7)^2 + 40

Solve the powers first.

4(16) - 2(49) + 40

Multiply.

64 - 98 + 40

Add and subtract.

= 6

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