Expression (3a-7).(3a+7) is identical with:

« Correct result

Wrong answer

Step-by-step explanation:


Did you find an error or inaccuracy? Feel free to write us. Thank you!


Related math problems and questions:

  • Distributive property
    expr Verify the distributive property a×(b+c)=(a×b)+(a*c) for the rational number a=5/8, b=7/4 and c=2/3
  • Evaluate expr with 2 vars
    expr If a=6 and x=2, find the value of (2ax + 7x- 10) /(4ax-3a-2)
  • Simple equation 3
    equilateral_triangle 24 = n • 27, solve for n
  • Even / odd numbers
    parne_neparne a / Using variable n write two consecutive odd numbers. b / the sum of three consecutive odd numbers is 333. What are this numbers?
  • The expression
    numbers2 What is the value of the expression ((62+60))/(23)
  • Evaluate 9
    expr Evaluate expression: 3 { 4 − 4 ( 5 − 12 ) } + 20
  • A rectangular 3
    rectangle A rectangular plot of land has an area of 3/2 square kilometers and a length of ¾ kilometer.  What is the width of the plot of land?
  • Expression with brackets
    expr Evaluate the expression. 15+[(9-4)×22]
  • Class 8.A
    trieda Three quarters of class 8.A went skiing. Of those who remained at home one third was ill and the remaining six were on math olympic. How many students have class 8.A?
  • Evaluate expression 2
    negativ Evaluate expression with negatives: (-3)+4+(-8)+(-6)+4+(-1)
  • Quotient 3
    fractal If the quotient of 8/13 and 2 is subtracted from the product of 1 3/4 and 8/21, what is the difference?
  • Sort fractions
    fractions Which is larger 3/7, 3/8, 3/9, 3/6 =
  • The length 2
    rectangles The length of a rectangle is 12y2 – 15y + 8 and the width is 7y – 11. Find the area of the rectangle
  • A plasticine
    cubes3 Jožko modeled from plasticine. He used 27g of plasticine to model a 3 cm long cube. How many grams of plasticine will it need to mold cubes with an edge of 6cm?
  • A number
    number_line A number increased by 7.9 is 8.3
  • Hexadecimal number
    digitrons What will be hexadecimal number 303 as decimal number?
  • Two numbers and its product
    ratios The product of two numbers are 2/3. If on of them is 1/10, what is the other?