So you need to turn 5x^2 -3x -9 into 2x - 3.
Well first you need to take 5x^2 out by subtracting 5x^2 (-5x^2).
Then -3x needs to become 2x by adding 5x (+5x).
Finally -9 needs to become -3 by adding 6 (+6).
Put all the things you did together to make a polynomial.
-5x^2 + 5x + 6
T<1,-7> is the ans because the subtraction sign would go back to 7
y < –12
Solution:
Step 1: Given inequality is y + 15 < 3.
To find the solution to the inequality.
Step 2: Subtract –15 on both sides to equal the expression.
⇒ y + 15 –15 < 3 –15
Step 2: Using addition identity property, any number adding with zero gives the number itself.
⇒ y + 0 < –12
⇒ y < –12
Hence the solution to the inequality is y < –12.
The value of f(-1) is -11 if the function f(n) = 8n - 3 after plugging the value of n is -1
<h3>What is a function?</h3>
It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
It is given that:
f(n) = 8n - 3
g(n) = 3n - 10
To find the value of f(-1) first plug n = -1 in the function f(n)
f(-1) = 8(-1) - 3
f(-1) = -8 - 3
f(-1) = -11
Thus, the value of f(-1) is -11 if the function f(n) = 8n - 3 after plugging the value of n is -1
Learn more about the function here:
brainly.com/question/5245372
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