Sagot :
Answer:
[tex]x^{2} - 49[/tex]
Step-by-step explanation:
(foil method)
x multiplied by x = [tex]x^{2}[/tex]
x multiplied by -7 = -7x
7 multiplied by x = 7x
7 multiplied by -7 = -49
thus,
[tex]x^{2} - 7x+ 7x - 49[/tex]
[tex]x^{2} - 49[/tex]
Answer:
[tex]x^{2} - 49[/tex]
Step-by-step explanation:
(foil method)
x multiplied by x = [tex]x^{2}[/tex]
x multiplied by -7 = -7x
7 multiplied by x = 7x
7 multiplied by -7 = -49
thus,
[tex]x^{2} - 7x+ 7x - 49[/tex]
[tex]x^{2} - 49[/tex]