williamthrashersyi
williamthrashersyi williamthrashersyi
  • 23-11-2020
  • Mathematics
contestada

x^2 + 7x – 18 = 0
a
{–2, 9}
b
{–9, 2}
c
{2, 9}
d
{–2, –9}

Relax

Respuesta :

Аноним Аноним
  • 23-11-2020

Answer:

b)-9,2

Step-by-step explanation:

x^2+7x-18=0

x^2+9x-2x-18=0

x(x+9)-2(x+9)=0

(x+9)(x-2)=0

therefore

x=-9

x=2

Answer Link

Otras preguntas

Find volume PLS HELP
The sum of 2 numbers is 21. The second number is 6 times the first number. Work out the two numbers.
A plane intersects both nappes of a double-napped cone, and it does not contain the vertex of the cone. Which conic section is formed? ellipse parabola circle h
NO SCAM. PLEASE SHOW WORK. WILL GIVE BRAINLY TO CORRECT ANSWER.
what is the graph of y=-2cos 1/2 x​
Help please ?!?!?!!???????!???!???!!????!!??!??!?!?!!??!?!!????
What type of microscope would a biologist use to study sub-cellular structures?
why do granite domes assume a rounded shape​
[tex]5+\frac{x}{2} \geq 10[/tex]
In circle Q with m \angle PQR= 58m∠PQR=58 and PQ=4PQ=4 units find area of sector PQR. Round to the nearest hundredth.