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lord [1]
2 years ago
6

What is (1-7x)(1+9x)

Mathematics
2 answers:
Vikentia [17]2 years ago
7 0

Answer:

1+2x-63x^2

Step-by-step explanation:

factor 1(1+9x)=1+9X

-7x(1+9x)=-7x-63x^2

add 1+9x-7x-63x2

Sveta_85 [38]2 years ago
5 0

ANSWER

(1-7x)(1+9x) =-  63 {x}^{2} + 2x + 1

EXPLANATION

The given product is (1-7x)(1+9x).

Expand using the distributive property.

(1-7x)(1+9x) = 1(1 + 9x) - 7x(1 + 9x)

(1-7x)(1+9x) = 1 + 9x - 7x -  63 {x}^{2}

Simplify to obtain:

(1-7x)(1+9x) = 1 + 2x -  63 {x}^{2}

You can rewrite in standard form to get,

(1-7x)(1+9x) =-  63 {x}^{2} + 2x + 1

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