jessihogan
jessihogan
13-04-2018
Mathematics
contestada
what are the solutions to 2x^2 + 7x = 4
Respuesta :
dannielle
dannielle
13-04-2018
2x^2+7x-4=0
Δ=7^2-4*2*(-4)
Δ=49+32
Δ=81
x1=(-7+V81)/4=(-7+9)/4=2/4=1/2
x2=(-7-9)/4=-16/4=-4
the solutions:
x1= 1/2
and
x2= - 4
Answer Link
VER TODAS LAS RESPUESTAS ( 33+ )
Otras preguntas
f(x)=3x-4 and g(x) = x2 find the value of f(3)-g(2) show all work
apples costs $1.98 per pound, how much does 1.5 pounds of apples cost
What is the product of 7×-6 1/8
On a scale drawing , a tree is 6 3/4 inches tall.The scale factor is 1/20 . Find the height of the actual tree.
What relationship does the commandment "Remember the Sabbath day" relate to? A. parent-child B. king-subject C. God-believer D. sister-brother
Can someone help me ASAP plz?
Jane is a cliff diver and she is planning on jumping from a height of 747 feet and landing in the water below. She will end her dive 64 feet below sea level. Wh
Please help lol this is due soon
Why does Tituba confess to working with the Devil?
PLEASE HELP!! :)) George Washington is known as the Father of Our Country. He was a great military and political leader. However, he wasn't always fighting wars
