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Factor completely.

7x^(2)+28 x-35=

Factor completely.\newline7x2+28x35=7x^{2}+28x-35=

Full solution

Q. Factor completely.\newline7x2+28x35=7x^{2}+28x-35=
  1. Identify quadratic trinomial: Identify the quadratic trinomial and look for common factors.\newlineThe given expression is 7x2+28x357x^2 + 28x - 35. We can see that 77 is a common factor of all three terms.
  2. Factor out GCF: Factor out the greatest common factor (GCF) from the expression.\newlineThe GCF of 7x27x^2, 28x28x, and 35-35 is 77. So we factor out 77 from the expression.\newline7(x2+4x5)7(x^2 + 4x - 5)
  3. Factor quadratic expression: Factor the quadratic expression inside the parentheses.\newlineWe need to find two numbers that multiply to 5-5 (the constant term) and add up to 44 (the coefficient of the xx term).\newlineThe numbers that satisfy these conditions are 55 and 1-1.
  4. Write factored form: Write the factored form using the numbers found in Step 33.\newlineWe can now express x2+4x5x^2 + 4x - 5 as (x+5)(x1)(x + 5)(x - 1).
  5. Combine GCF with factored form: Combine the GCF factored out in Step 22 with the factored form from Step 44.\newlineThe completely factored form of the expression is 7(x+5)(x1)7(x + 5)(x - 1).