Answer:
Roots are : 1, -7 and -7
Step-by-step explanation:
When we put x = -1 in F(x) it is equal to 0
Thus, (x + 1) is factor of given function.
When we divide F(x) by (x + 1) it gives the value (x² - 6x - 7)
factorizing the work x² - 6x - 7 by middle term splitting.
> x² - 6x - 7 = x² - 7x + x - 7
> x(x - 7) + 1(x - 7)
> (x + 1) (x - 7)
then, x³ - 5x² - 13x - 7 = (x + 1)(x + 1)(x - 7)
x = -1, -1, 7 the factor.
D and C is the answers.
Step-by-step explanation:
Answer:
matrices can be simple added by ading the adjacent elements of the two matrices
The matrix multiplication is done by multiplying row of first matrix to columns of the other matrix.
each multiplication for each element of the resultant matrix.
Step-by-step explanation:
Answer :
Choice B because it is the only one that makes sense
