What are the zeros of the function #h(x) = x^2 + 20x +75#?

1 Answer
Jim G.
Jul 2, 2018

#x=-15,x=-5#

Explanation:

#"to find the zeros let "f(x)=0#

#x^2+20x+75=0#

#"the factors of "+75" which sum to "+20#

#"are "+5" and "+15#

#(x+5)(x+15)=0#

#"equate each factor to zero and solve for "x#

#x+15=0rArrx=-15#

#x+5=0rArrx=-5#

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