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Y_Kistochka [10]
3 years ago
7

What is (x-2)(x+5)=0

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
8 0

=  > (x - 2)(x + 5) = 0 \\  \\  =  > x(x + 5) - 2(x + 5) = 0 \\  \\  =  >  {x}^{2}  + 5x - 2x - 10 = 0 \\  \\  =  >  {x}^{2}  + 3x - 10 = 0 \\  \\ If \: we \: have \: to \: find \: value \: of \: x \:  \\ then \: substitute \: both \: the \: term \:  \\ equal \: to \: zero \\  \\  =  > x - 2 = 0 \:  \:  \:  \:  \:  \: x + 5 = 0 \\  \\  =  > x = 2 \:  \:  \:  \:  \:  \: x =  - 5 \\  \\  =  > x = 2 \: or \:  - 5
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