maths

Solve each of these questions by factorising the left hand side into a product of linear factors:

(i) x^2 - 6x - 40 = 0

(ii) 3x^2 + 20x - 7 = 0

For each question in part (a), check your solutions by substituting them back in to the equation.

  1. 👍
  2. 👎
  3. 👁
  1. -did the first one for you
    - still waiting for your response to the second part of my reply

    http://www.jiskha.com/display.cgi?id=1477316621

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    Heather is solving an equation by graphing the expressions on both sides. If her graph intersects at an infinite number of points, which statement could describe the equation Heather is attempting to solve? A. One side of the

  2. Marketing

    Which stage of the typical consumer product life cycle is out of place? A. Product development. B. Introduction. C. Maturity. D. Growth. E. A and B I am torn between A and C. Product development is part of the product life cycle

  3. solar science physics

    On the left-hand side of the figure below a III-V triple junction solar cell is shown. On the right-hand side, the J-V curves of the individual component cells and the multi-junction solar cell are shown. Which junction

  4. PreCalc

    Consider the tip of each hand of a clock. Find the linear velocity in millimeters per second for each hand. a. second hand which is 30 millimeters. b. minute hand which is 27 millimeters long. c. hour hand which is 18 millimeters

  1. statistics

    For a normal distribution, identify the z-score location that would separate the distribution into sections so that there is: a)60% in the body on the right-hand side b)90% in the body on the left-hand side

  2. college algebra

    Using Systems of Equations. Please help!!! I'm not sure what steps to do, to work this problem. #7) Five hundred tickets were sold for a school play, which generated $3560 in revenue. The prices of the tickets were $5 for

  3. Chemistry 30

    Complete the following reactions by moving only one proton at a time. Identify the acid (A) and the base (B) on the left-hand side of the equation, and the conjugate acid (CA) and the conjugate base (CB) on the right-hand side of

  4. Mathematics

    Factorising algebraic expression with common factors .How to solve 5ac+10ab-25ad

  1. physics

    Consider a 626N weight held by two cables. The left hand cable had tension T and makes an angle of theta with the wall. The right hand cable had tension 720N and makes an angle of 27 degrees with the ceiling. What is the tesion T

  2. math

    how do you isolate a variable? my teacher gave us questions and we are suppose to isolate the variable x PLEASE HELP! x + 3y = 11 You isolate it by moving everyting to the other side except that variable. Thus x + 3y = 11 is the

  3. PreCalculus

    Determine the sum of the geometric series: p+p^2+p^3+.....+(n terms) I know how to work the formulas but I don't understand how I can find 'tn'. Thanks, -Jay I'm not sure what you mean by 'tn'. Is that t_n, t-sub-n? Let's look at

  4. Physics

    Find the angular velocity of a clock's second hand and the linear speed and linear acceleration of a point on the second hand 1.96 cm from the rotation axis.

You can view more similar questions or ask a new question.