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.
That factors to (x + 1)(x - 3) x = -1, 3
It can be solved by using the quadratic equation formula.