13. Which of the following are NOT perfect square trinomials? Pick all that apply. A) y = x² + 2x + 1 B) y= 16x² + 8x +1 C) y= 121x + 264x + 144 D) y = 25x? - 40x + 16 E) None of the above, they are all perfect squares +

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A: Please refer the attached image for complete solution. THANKYOU.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.