Answer:
C
Step-by-step explanation:
To factorise the quadratic
Consider the factors of the constant term (- 39) which sum to give the coefficient of the x- term (- 10)
The factors are - 13 and + 3, since
- 13 × 3 = - 39 and - 13 + 3 = - 10, hence
x² - 10x - 39 = (x - 13)(x + 3) ← in factored form
x - 13 is a factor → C
Answer:
The four methods of solving a quadratic equation are factoring, using the square roots, completing the square and the quadratic formula.
Step-by-step explanation: hope this helped!
(if not sorry :p )
The answer is 8/9-1/4=23/36 reading the comics
Answer:
The answer is the summation of 30 times two fifth of the i minus 1 power from equation equals to 1, the sum is 50.
Explanation:
S = a ÷ (1-r)
S = 30 ÷ (1- (2÷5))
S = 50.
The sum is 50.
By sigma notation verifies 30.
