X^2+7x+12=0
algebraic proofs
solve each equation, write a reason for every step.

x = -3, or x  = -4 is the solution for the given algebraic expression

Step-by-step explanation:

Here, the given algebraic equation is:

Now, solving this expression by splitting the middle term, we get

⇒ x ( x+3) + x (x+3) = 0

⇒(x+3) (x+4) = 0

⇒ either (x+3) = 0, or (x+4) = 0

Hence, either x = - 3, or x  = - 4

Hence, x = -3, or x  = -4 is the solution for the given algebraic expression

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a