factorize : a. 2x^2-5x-3 b.4m^2-49
Answers
Answered by
1
Step-by-step explanation:
A.
2x²-5x-3 Product=-6=-6×1
2x²-6x+x-3 Sum=-5=-6+1
(2x²-6x)+(x-3)
2x(x-3)+1(x-3)
(x-3)(2x+1)
The Factors of 2x²-5x-3 are (x-3) and (2x+1).
B.
4m²-49
(2m)²-(7)² [a²-b²]
Answered by
1
Answer:
Step-by-step explanation:
A.
2x²-5x-3 Product=-6=-6×1
2x²-6x+x-3 Sum=-5=-6+1
(2x²-6x)+(x-3)
2x(x-3)+1(x-3)
(x-3)(2x+1)
The Factors of 2x²-5x-3 are (x-3) and (2x+1).
B.
4m²-49
(2m)²-(7)² [a²-b²]
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