7 is infinite 6 is 4/3 5 is zero 4 is negative 5/4
We can use the FOIL method to solve.
(5x + 3)(7x - 7)
(5x * 7x) + (5x * -7) + (3 * 7x) + (3 * -7)
35x - 35x + 21x - 21
0 + 0
0
Best of Luck!
That is correct because it’s a real high school

I'm confused too but that what i got
X^2 = 7^2 + 24^2x^2 =49 + 576x^2 = 625
x = 25