Identify Coefficients: Identify the coefficients for p2, p, and the constant term in the quadratic expression p2+20p+19. The quadratic expression is in the form p2+bp+c, where b is the coefficient of p, and c is the constant term. For p2+20p+19, b=20 and c=19.
Find Multiplying Numbers: Find two numbers that multiply to give c(19) and add up to give b(20). We need to find two numbers m and n such that m×n=19 and m+n=20. Since 19 is a prime number, the only factors of 19 are 1 and 19 itself. b(20)0 and b(20)1, so the numbers we are looking for are 1 and 19.
Write Factored Form: Write the factored form of the quadratic expression using the numbers found in the previous step.The factored form will be (p+m)(p+n), where m and n are the numbers found.Substitute m=1 and n=19 into the factored form to get (p+1)(p+19).
More problems from Factor quadratics with leading coefficient 1