b = 3
Step-by-step explanation:
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Collect like terms and simplify
The answer is 1. f(a) = –2a^2 – 5a + 4. If a = -3, then to find f(-3) we
have to substitute a in the general formula. f(a) = –2a^2 – 5a + 4 = -2
* a^2 – 5 * a + 4. Substitute a with -3. f(-3) = –2 * (-3)^2 – 5 * (-3)
+ 4 = -2 * 9 - (-15) + 4 = -18 + 15 + 4 = 1
The answer x= positive 6 or negative 6. So x=6,-6
Subtract 25 from each side of that equation, and it says that x-squared = negative 25. 'X' can't be any real number. If you know how to work with imaginary numbers, you'll know that the two solutions are x=5i and x=-5i ... the ' i ' is the symbol meaning the square root of -1 .
(4,3) Down 3 from 6 on y-axis and left 2 on x-axis.