Answer:
Step-by-step explanation:
1.
[tex]2x + 8x - 10 + 6[/tex]
Collect like terms
[tex] = 10x - 10 + 6[/tex]
Calculate the sum
[tex] = 10x - 4[/tex]
Factor out 2 from the expression
[tex] = 2(5x - 2)[/tex]
2.
[tex]3(x + 7)[/tex]
Multiply each term in the parentheses by 3
[tex] = 3x + 3 \times 7[/tex]
Multiply the numbers
[tex] = 3x + 21[/tex]
3.
[tex](x + 2)(x - 3)[/tex]
Multiply each term in the first parentheses by each term in the second parentheses ( FOIL )
[tex] = x(x - 3) + 2(x - 3)[/tex]
Calculate the product
[tex] = {x}^{2} - 3x + 2x - 2 \times 3[/tex]
Multiply the numbers
[tex] = {x}^{2} - 3x + 2x - 6[/tex]
Collect like terms
[tex] = {x}^{2} - x - 6[/tex]
Hope this helps..
best regards!!
