Question

1-2a-3a^2


answer is (1-3a)(1+a)​

Answer 1

$\huge{\underline{\red{\mathfrak{Answer}}}}$

1 - 2a - 3a²

-3a² - 2a + 1

-3a² - 3a + a + 1

Arrange it ..

a - 3a² + 1 - 3a

a ( 1 - 3a ) + 1 ( 1 - 3a )

( 1 - 3a )( 1 + a )

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Answer 2

$1 - 2a - {3a}^{2}$

$1 - (3 - 1)a - {3a}^{2}$

$1 - 3a + a - {3a}^{2}$

$1(1 - 3a) + a(1 - 3a)$

$(1 - 3a)(1 + a)$

this is your answer ✔✔✔