Question

(ii) (2x - 3) (5x + 2) + (3x – 7) (4x - 1)
linear equation in one variable

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Answer 1

(2x−3)(5x+2)+(3x−7)(4x−1)

Distribute:

=(2x)(5x)+(2x)(2)+(−3)(5x)+(−3)(2)+(3x)(4x)+(3x)(−1)+(−7)(4x)+(−7)(−1)

=10x²+4x+−15x+−6+12x²+−3x+−28x+7

Combine Like Terms:

=10x²+4x+−15x+−6+12x²+−3x+−28x+7

=(10x²+12x²)+(4x+−15x+−3x+−28x)+(−6+7)

=22x²+−42x+1

Answer 2

Step-by-step explanation:

3x−5=2x+6+7 is a linear equation in one variable as there is only one variable i.e., x and highest power of it is 1