x2 + 8x - 20 = 0
(x + 10) (x - 2) = 0
(x+10) = 0 . . . . . x = -10
(x - 2) = 0 . . . . . x = 2
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Solve using the quadratic formula
If x squared -10 = 0 then x = the square root of 10
You have to put your heart into it!
a2 + 2a - 3 = 0(a + 3)(a - 1)a = - 3a = 1Simple factoring where you ask yourself; what two factors of - 3 add up to 2?
hello
Solve this problem -x squared -40x- 80 =0
Solve using the quadratic formula
X=1
If x squared -10 = 0 then x = the square root of 10
You have to put your heart into it!
a2 + 2a - 3 = 0(a + 3)(a - 1)a = - 3a = 1Simple factoring where you ask yourself; what two factors of - 3 add up to 2?
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hello
x = 25 / 3squared + 5
Without an "equals" word or sign somewhere, there is nothing to solve.You only have an expression, not an equation.
It can be solved by using the quadratic equation formula.
2x squared minus 5x minus 3 factored is (2x+1)(x-3).