Answer:
b = 4
Step-by-step explanation:
Let's substitute x = -1 into the expression 5x−[tex]2x^2[/tex]+b and set it equal to -3 to find the value of b.
5(−1)−2[tex](-1)^2[/tex]+b=−3
Simplify the expression:
−5−2+b=−3
Combine like terms:
−7+b=−3
Now, to solve for b, add 7 to both sides of the equation:
b=−3+7
b=4
