Evaluate the following (a) 2x+y divide 4 for x=6and y =4
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6
Answer:
Step-by-step explanation:
a) 2x + y + 4 for x = 6 and y = 4
2x + y + 4
= 2×6 + 4 + 4
= 12 + 4 + 4
= 20
c) - 3abc-3 for a = 1, b = 2 and c = 3
- 3abc-3
= - 3×1×2×3 - 3
= - 18 - 3
= - 21
b) 8x^2 + 5xy - y for x = 3 and y = 2
8x^2 + 5xy - y
= 8× 3^2 + 5×3×2 - 2
= 72 + 30 - 2
= 100
d) 9x^2 + 3x + 2 + 4 for x = 5
9x^2 + 3x + 2 + 4
= 9×5^2 +3×5 + 6
= 225 + 15 +6
= 246
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Answered by
1
Answer:
2x + y
4
2*6 + 4
4
12+4
4
16/4
4
Step-by-step explanation:
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