Solve 8x^2− 22x − 21 = 0 by the factorization method
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1
Answer:
two zeroes of this equation are -3/4 and7/2.
Step-by-step explanation:
8x²-22x-21
=8x²-28x+6x-21
=4x(2x-7)+3(2x-7)
=(4x+3)(2x-7)
Therefore 4x+3=0
4x=-3
x=-3/4
2x-7=0
2x=7
x=7/2
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