Question

add the following expressions
3/4x^2, 5x^2, -3x^2, -1/4x^2​

Answer 1

Answer:

Step-by-step explanation:

(5x^2)/2

Answer 2

Step-by-step explanation:

$\frac{3}{4} {x}^{2} + 5 {x}^{2} - 3 {x}^{2} - \frac{1}{4} {x}^{2} \\ = \frac{3}{4} {x}^{2} + \frac{20}{4} {x}^{2} - \frac{12}{4} {x}^{2} - \frac{1}{4} {x}^{2} \\ = \frac{ {x}^{2} (3 + 20 - 12 - 1)}{4} \\ = \frac{10 {x}^{2} }{4} \\ = \frac{5 {x}^{2} }{2}$

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