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Standard form of (2x-7)(x+3)=0

Sagot :

Answer:

2x² − x − 21 = 0

Step-by-step explanation:

Simplify and arrange the terms in descending order by this

ax² + bx + c = 0

ax²= 2x + x

bx= x

c

or you could expand to solve

ax² + bx + c = 0

EXPAND

(2x + 7)( x −1)

Apply distributive property

2x (x−1) + 7 (x−1) = 0

2x ⋅ x + 2x ⋅−1 + 7 (x−1) = 0

2x ⋅ x + 2x ⋅ −1 + 7 x + 7 ⋅ − 1 = 0

Simplify and combine like terms

2x² −2x + 7x − 7 =0

Add −2x and 7x.

2x² + 5x − 7= 0