Answer: it's -8
Step-by-step explanation: use the values of a, b, and c to find the discriminant. give me brainliestt
Answer:
x = 7
x = -5
Step-by-step explanation:
Given
x² - 2x - 35 = 0
Consider the factors of the constant term (- 35) which sum to give the coefficient of the x- term (- 2)
The factors are - 7 and + 5, since
- 7 × 5 = - 35 and - 7 + 5 = - 2, thus
(x - 7)(x + 5) = 0
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x - 7 = 0 ⇒ x = 7
Reapuesta: 8d = 80u
Tenemos que una decena equivale a 10 unidades.
Debemos multiplicar las 8 decenas por el valor de una sola decena.
8 decenas equivalen a 80 unidades.
Espero que te sirva, salu2!!!!
Answer:the area is = the length*the width
2x^2-11x+15= (2x-5)* the width
you have to divide 2x^2 - 11 x + 15 at 2x-5
2x^2-11x+15 | 2x-5
-2x*2+5x x-3
-------------
/ -6x+15
+6x-15
-----------------
/ /
the answer is X-3
Step-by-step explanation:
a) The solution is x = -9.
b) The solution is x = 15.
<u>Step-by-step explanation:</u>
a) The given equation is 3(x+1)=2(x-3).
To solve this equation, distributive property is used.
<u>The Distributive property :</u>
It is done by multiplying the number outside the bracket with each terms present inside the bracket.
Now, the first step is to multiply 3 with each terms in (x+1) and multiply 2 with each terms in (x-3).
⇒ 3x+3 = 2x-6
Bring x terms on one side and constants on other side,
⇒ 3x-2x = -6-3
⇒ x = -9
b) The given equation is 2(5x-6)=3(3x+1).
To solve this equation,distributive property is used.
Now the first step is to multiply 2 with each terms of (5x-6) and 3 with each terms of (3x+1).
⇒ 10x-12 = 9x+3
Bring x terms on one side and constants on other side,
⇒ 10x-9x = 3+12
⇒ x = 15