Anything multiplied by zero is is zero. So, this would also work for this particular equation. 8 multiplied by 0 is o.
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x^2 +4x-32=0 (x-4)(x+8)=0 then x-4=0 x+8=0 x=4 x=-8
3x2 + 30x + 48 is a quadratic polynomial. If 3x2 + 30x + 48 = 0, then: 3(x + 2)(x + 8) = 0 ⇒ x + 2 = 0 → x = -2 or x + 8 = 0 → x = -8
Possible example: 2|x| = x2 - 8 For x>=0, x2 - 2x - 8 = 0 (x-4)(x+2)=0 so x=4 (can't be -2 since x>=0) For x<0, x2 + 2x - 8 = 0 (x-2)(x+4)=0 so x=-4 (can't be 2 since x<0)
48,000 =(4 x 104) + (8 x 103) + (0 x 102) + (0 x 101) + (0 x 100) OR(4 x 10000) + (8 x 1000) + (0 x 100) + (0 x 10) + (0 x 1)
The expanded notation of 8,506,000 =(8 x 1000000) + (5 x 100000) + (0 x 10000) + (6 x 1000) + (0 x 100) + (0 x 10) + (0 x 1)(8 x 106) + (5 x 105) + (0 x 104) + (6 x 103) + (0 x 102) + (0 x 101) + (0 x 100)