Sumali sa IDNStudy.com at makakuha ng mabilis at maaasahang mga sagot. Ang aming platform ng tanong at sagot ay idinisenyo upang magbigay ng mabilis at eksaktong sagot sa lahat ng iyong mga tanong.

ACTIVITY 1:
Give the product of the following:
1. (a + 8) (a -5)
2. (x-4) (x-8)​


Sagot :

Answer:

1. (a+8)(a-5)

FOIL METHOD:

(a)(a) =

(a)(-5) = -5a

(8)(a) = 8a

(8)(-5) = -40

Solve like terms,

-5a + 8a = 3a

FINAL ANSWER = a² + 3a - 40

2. (x-4)(x-8)

FOIL METHOD

(x)(x) =

(x)(-8) = -8x

(-4)(x) = -4x

(-4)(-8) = 32

Solve like terms,

-8x - 4x = -12x

FINAL ANSWER: x² - 12x + 32

Answer:

[tex]1. (a + 8)(a - 5)[/tex]

[tex](a + 8) \times (a - 5)[/tex]

Multiply each term in the first parenthesis by each term in the second parenthesis (FOIL).

[tex]a \times a - 5a + 8a - 8 \times 5[/tex]

Calculate the product

[tex]a {}^{2} - 5a + 8a - 8 \times 5[/tex]

[tex]a {}^{2} - 5a + 8a - 40[/tex]

Answer:

[tex] = a {}^{2} + 3a - 40[/tex]

===========================================

[tex]2. (x - 4)(x - 8)[/tex]

[tex](x - 4) \times (x - 8)[/tex]

Multiply each term in the first parentheses by each term in the second parenthesis (FOIL).

[tex]x \times x - 8x - 4x - 4x( - 8)[/tex]

Calculate the product

[tex]x {}^{2} - 8x - 4x - 4x( - 8)[/tex]

[tex]x {}^{2} - 8x - 4x + 32[/tex]

Answer:

[tex] =x {}^{2} - 12x + 32[/tex]

===========================================

#CarryOnLearning