f(x) is a fancy way of saying y. So for now I will refer to y.
f(x)
y=3x+2+7x
g(x)
y=2x2-x-1
3x+2+7x+(2x2)-x-1 = f(x)+g(x)
Now lets add
10x+2+4-x-1=f(x)+g(x)
9x+5=f(x)+g(x)
Brainliest/Heart would help
Try this suggested option:
Step-by-step explanation:
f(x)=2(2x²+4x)+3; ⇔
f(x)=4(x²+2x)+3; ⇔
f(x)=4(x²+2x+1)+3-4; ⇔
f(x)=4(x+1)²-1; ⇔
f(x)=(2x+1)(2x+3).
Then the roots are:
Answer:
see explanation
Step-by-step explanation:
here,
step by step explanation
4x+5=3x+4
or 4x-3x=4-5
or x= -1
you said -1 in the value of this equation.