Question

Q1 B Solve.
(1) Check whether x = -3 is the root of the quadratic equation
x2 + 4 = 13.

plz answer this correctly if you don't know then don't try answering just for points. THANK YOU ​

Answer 1

Answer:

yes

Step-by-step explanation:

putting x=-3 in the equation , we get

(-3)^2 +4-13

=9+4-13

=13-13

=0

so it is the root of this quadratic equation

I helped in your question your doubt please in return mark my answer as previous

Answer 2

Answer:

yes

Step-by-step explanation:

p(X) = x^2 + 4 = 13

p(-3) = (-3)^2 + 4 = 13

p(-3) = 9 + 4 = 13

p(-3) = 13 = 13

LHS = RHS

Therefore X=-3 is root