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The Brainliest Answer!

Example:

Given:4x2 + 7x – 15

Find the product ac:(4)(-15) = -60

Think of two factors of -60 that add up to 7:-5 and 12

Write the 7x as the sum of -5x and 12x:4x2 – 5x + 12x – 15

Group the two pairs of terms:(4x2 – 5x) + (12x – 15)

Remove common factors from each group:x(4x – 5) + 3(4x – 5)

Notice that the two quantities in parentheses are now identical.

That means we can factor out a common factor of (4x - 5):(4x – 5)(x + 3)

x(x-5)=2