1.

Pls answer step by step.......

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Answer:

1.

x^2 + 6X - 16

x^2 + 8x - 2x - 16

x(x + 8) - 2(x + 8)

(x-2)(x+8) = 0

x = 2 & -8

2.

x^2 + 2x - 6x - 12

x(x + 2) -6(x + 2)

(x-6)(x+2) = 0

x = 6 & -2

3.

3x^2 - 9x + x - 3

3x(x - 3) + 1(x - 3)

(3x+1)(x-3) = 0

x = -1/3 & 3

4.

x^2 + 5x + 5x + 25

x(x+5) + 5(x+5)

(x+5)(x+5) = 0

x = -5 & -5


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