How do you find the zeroes of #f( x ) = 5( 2x - 5) ( 5x + 4)#?
1 Answer
Jul 25, 2017
Explanation:
#"the zeros are the values of x that make f(x) equal zero"#
#"to find them set " f(x) = 0#
#rArr5(2x-5)(5x+4)=0#
#"set each factor to zero and solve for x"#
#2x-5=0rArrx=5/2#
#5x+4=0rArrx=-4/5#
#rArr"the zeros are "x=-4/5" and "x=5/2#