find the roots of the equation 2ײ-7n+6=0 is 5/2
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Step-by-step explanation:
You can check these solutions by substituting each one at a time into the original equation, (x + 4)(x – 3) = 0. You can also try another number to see what happens.
Checking x = −4
Checking x = 3
Trying x = 5
(x + 4)(x – 3) = 0
(x + 4)(x – 3) = 0
(x+ 4)(x – 3) = 0
(−4 + 4)(−4 – 3) = 0
(3 + 4)(3 – 3) = 0
(5 + 4)(5 – 2) = 0
(0)( −7) = 0
(7)(0) = 0
(9)(3) = 0
0 = 0
0 = 0
27 ≠ 0
The two values that we found via factoring, x = −4 and x = 3, lead to true statements: 0 = 0. So, the solutions are correct. But x = 5, the value not found by factoring, creates an untrue statement—27 does not equal 0!
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Answer:
27 is not equal to 0
Step-by-step explanation:
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