Answer/Step-by-step explanation:
a. x(x - 3) + 2(x - 3)
x*x + x*-3 + 2x + 2*-3 (distributive property)
x² - 3x + 2x - 6
Add like terms
x² - x - 6
b. 2x(x - 4) -3(x - 4)
2x*x + 2x*-4 -3*x -3*-4 (distributive property)
2x² - 8x - 3x + 12
Add like terms
2x² - 11x + 12
c. x(x - 2) + 2(x - 2)
x*x + x*-2 + 2*x + 2*-2 (distributive property)
x² - 2x + 2x - 4
Add like terms
x² - 0 - 4
x² - 4
Question 1)
there’s 180 degrees in a triangle
70 + 70 = 140
180 - 140= 40
A= 40
question 2)
there’s only one line of symmetry, down the middle
That's a safe position to take, and a statement unexcelled for accuracy or veracity. Do you have a question to ask ?
Answer:
1615
Step-by-step explanation:
Area of triangle is: A= B•H•1/2
Area of square is A= L•W
39•17•1/2= 331.5
331.5•4= 1326
17•17= 289
Add the square area to the area of the triangles
289+ 1326= 1615
hope this helps chu <3
