Find the zeros of the following quadratic functions, which are already in factored form:
F(x)= (700-5x)(50+2x)

Can someone help walk me through the steps ?

Question

Find the zeros of the following quadratic functions, which are already in factored form: 
F(x)= (700-5x)(50+2x)

Can someone help walk me through the steps ?

campbell_st · Answer

to find the zeros set each binomial to zero and solve for x

so you need to solve

700 - 5x = 0

and 

50 + 2x = 0

the reason there are called zeros, is that then either of the solutions above are substituted into the original equation yo'll get F(x) = 0

anonymous · Answer

Okay.. but I don't get how to find the zeros.

campbell_st · Answer

well you just solve the equations for 

700 - 5x = 0

start by subtracting 5x from both sides of the equation 

700 = 5x

now divide both sides by 5

140 = x

so x = 140 is a zero 

do the same for the other binomial.. 

50 +2x = 0

what value of x makes the equation equal zero...

hope this helps

anonymous · Answer

So it's 25 = x for the next one ?

campbell_st · Answer

nope its x = -25