Question

if one of the factor of x^2+x-20 is x+5 find the other? ​

Answer 1

Answer:

Solution:

》x² + x - 20 .... is the given polynomial

》x² + 5x - 4x - 20

》x (x + 5) - 4 (x + 5)

》(x + 5) (x - 4)

Complete statement.

If one of the factor of x² + x - 20 is x + 5 the other factor is x - 4.

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Extra information:

For any polynomial the sum of coefficients of terms having even power of variable is same as sum of coefficients of terms having odd power of variable then (x - 1) is the factor of that polynomial.