I would take the square roots of both sides, remembering that there can be either a + or - sign on the square root.
That will leave you with
7 t = + or - 5.
Next, divide both sides by 7.
If you want to use factoring, rewrite the equation as
(7t +5)(7t -5) = 0
You will get the same answer.
Use factoring to solve each equation:
49t^2=25 How would u do this? Thank You
3 answers
How did you get the (7t+5)(7t-5)
From 49t^2 - 25 = 0
(7t+5)(7t-5)= 0 is the factored version of gthe same equation.
Whenever you have the difference of two perfect squares, factoring is easy.
a^2 - b^2 = (a-b)(a+b)
(7t+5)(7t-5)= 0 is the factored version of gthe same equation.
Whenever you have the difference of two perfect squares, factoring is easy.
a^2 - b^2 = (a-b)(a+b)
3 answers