Question

The trinomial x2+x-20 is exactly divisible by:​

Answer 1

Answer:

Factor y = x^2 + x - 20

Ans: (x - 4)( x + 5)

Find 2 numbers knowing sum (1) and product (-20).

To find them, factor pairs of (-20) --> (-2, 10)(-4, 5). This sum is 1 = b.

Then, these 2 numbers are: -4 and 5.

y = (x - 4)(x + 5)

Step-by-step explanation:

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