Question

a^2-b^2

Answer 1

There is a rule,
\(\large\color{blue}{ c^2-d^2=(c-d)(c+d) }\)

Answer 2

apply the same exact thing to your equation.

Answer 3

thank you

Answer 4

Anytime... glad that it helps.

Answer 5

h(x)=x^2-5x-11
solve h(x)=0
give your answer correct to 2 decimal place
x= .........,x=.............

Answer 6

\(\large\color{blue}{h(x)=x^2-5x-11 }\)
When h(x) (the same thing as y) is equal to zero, the x solution(s) is the y intercept.

\(\large\color{blue}{0=x^2-5x-11 }\)