cthompson1107
18.11.2019 •
Mathematics
What two numbers added together equal 6, but when multiplied equal -40. my problem is 'a+b=6, ab=-40'
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Ответ:
10 * -4 = -40
Use the factors of forty.
Ответ:
.. -4x +2y -4z = -4(-2) +2(-2) -4(4)
.. -4x +2y -4z = 8 -4 -16 = -12
Multiplying by -1/2 will put the equation into standard form.
2x -y +2z = 6