Question

factor the ff completely
18x^2 + 3x - 15
5x^2 + 32x + 12​

Answer 1

Answer:

We factories them by using splitting the middle term.

Step-by-step explanation:

18x^2 + 3x - 15 = 6x^2 + x - 5

= 6x^2 + 6x - 5x - 5

= 6x(x+1) - 5(x+1)

= (6x-5)(x+1)

On solving further, we get

x = 5/6 or x = -1

5x^2 + 32x + 12 = 5x^2 + 30x + 2x + 12

= 5x(x+6) + 2(x+6)

= (5x+2)(x+6)

On solving further, we get

x = -2/5 or x = -6

Hope you understand it.

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