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A x^2 - 25

Step-by-step explanation:

(x + 5)(x - 5) = x^2 - 5x + 5x - 25 = x^2 - 25

A x^2 - 25

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step-by-step explanation:

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d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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