Evaluate the FF if x = 5 , y = 3
1. x² - y²
2.
[tex] \frac{x + y}{x - y} [/tex]
3. 3x² - 4xy + 7
4. 5² x y² + 3x - 4y + 3
5. 10x² + 5y² - 10
pls pa answer po need na po in monday kase eh, i pa² brainliest ko ang mag answer sa lahat ng tama, thabk you in advance po
1. x² - y²
2.
[tex] \frac{x + y}{x - y} [/tex]
3. 3x² - 4xy + 7
4. 5² x y² + 3x - 4y + 3
5. 10x² + 5y² - 10
pls pa answer po need na po in monday kase eh, i pa² brainliest ko ang mag answer sa lahat ng tama, thabk you in advance po
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Answer:
x = 5, y = 3
1. x² - y²
Substitute all given terms.
5² - 3²
Using 5² - 3² = 4², solve:
= 4²
≈ 16
2. x + y / x - y
Substitute all given terms.
5 + 3 / 5 - 3
Add and subtract.
8 / 2
Divide.
= 4
3. 3x² - 4xy + 7
Substitute all given terms.
3(5)² - 4(5)(3) + 7
Evaluate the power.
3(25) - 4(5)(3) + 7
Multiply.
75 - 60 + 7
Simplify.
= 22
4. 5²xy² + 3x - 4y + 3
Substitute all given terms.
5²(5)(3)² + 3(5)² - 4(3) + 3
Evaluate the power.
25(3)(9) + 3(25) - 4(3) + 3
Multiply.
675 + 75 - 12 + 3
Simplify.
= 741
5. 10x² + 5y² - 10
Substitute all given terms.
10(5)² + 5(3)² - 10
Evaluate the power.
10(25) + 5(9) - 10
Multiply.
250 + 45 - 10
Simplify.
= 285