If the quadratic formula is used to solve 2x(x + 5) = 4, what are the solutions? {-1/2, -9/2}
2 answers:
X²+bx=c
x=[-b+√(b²+4c)]/2
2x(x+5)=4
2x²+10x=4
x²+5x=2
x=[-5+√(5²+4*4)]/2
if b=-1/2 and c=-9/2
x= {1/2+√[(1/2)²+4*(-9/2)]}/2
<h2>
Answer:</h2>
The solutions are:

<h2>
Step-by-step explanation:</h2>
The equation is given by:

on using the distributive property of multiplication in the left hand side of the equation we have:

Now, we know that the solution of the quadratic equation:
is given by:

Here we have:

Hence, the solution is:

Hence, in decimal for the solution is:

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