Use the zero product property to find the solutions to the equation x2 – 15x – 100 = 0.
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Step-by-step explanation:
X²-15x-100=0
X²-20x+5x-100=0
X(x-20)+5(x-20)=0
(X+5=0)(x-20=0)
(X=-5)(x=20)
Put x=-5
(-5)²-15×(-5)-100=0
25+75-100=0
100-100=0
0=0
Put x=20
(20)²-15×20-100=0
400-300-100=0
400-400=0
0=0
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