Which binomial is a factor of w^2-w-20

From the given options, option D is the only choice that contains (w-5).

Step-by-step explanation:

Given the expression

Breaking the expression into groups

Factor out 'w' form w²+4w = w(w+4)

Factor out 'w' from -5w-20= -5(w+4)

so

Factor out common term: w+4

Thus, the factors are: (w+4) and (w-5)

Therefore, from the given options, option D is the only choice that contains (w-5).

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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