Answer:

Step-by-step explanation:
Hello
To simplify the polynomial we must eliminate the parentheses
by definition


I hope it helps
Have a great day
The definition of a coefficient is the number BEFORE the variable. So in 76x^2, the coefficient is 76.<span>
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Answer: 7,5
Step-by-step explanation:
Answer:
Um sry but what type of teacher tells there kid to do work on break doing freaking imagine math like Boy!lol
Step-by-step explanation:
Answer:
x = - 5, x = 4
Step-by-step explanation:
Given
f(x) = x² + x - 20
To find the zeros equate f(x) to zero, that is
x² + x - 20 = 0
Consider the factors of the constant term ( - 20) which sum to give the coefficient of the x- term ( + 1)
The factors are + 5 and - 4, since
5 × - 4 = - 20 and + 5 - 4 = + 1, hence
(x + 5)x - 4) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x - 4 = 0 ⇒ x = 4