Simplify the following expression. 13x^2+3-2x-6x^2-7x

Emma Hobbs

Emma Hobbs

Answered question

2022-11-06

Simplify the following expression. 13 x 2 + 3 2 x 6 x 2 7 x

Answer & Explanation

Laura Fletcher

Laura Fletcher

Beginner2022-11-07Added 22 answers

Step 1
= 13 x 2 + 3 2 x 6 x 2 7 x
= ( 13 6 ) x 2 + 3 ( 2 + 7 ) x
= 7 x 2 + 3 9 x
= 7 x 2 9 x + 3
Step 2
It root will be
x = b ± b 2 4 a c 2 a
= + g ± 81 4 × 7 × 3 2 × 7
= g ± 81 85 75
= 9 14 ± 3 14
x = 9 14 ± 3 14

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