分解因式(1)(4x²+5x)²-(5x+16)²
问题描述:
分解因式(1)(4x²+5x)²-(5x+16)²
答
(4x²+5x)²-(5x+16)²
= {(4x^2+5x) + (5x+16)} {(4x^2+5x) - (5x+16)}
= {4x^2+10x+16} {4x^2 - 16}
= {2(2x^2+5x+8)} {4(x^2 - 4)}
= 8(2x^2+5x+8)(x+2)(x-2)
答
(4x²+5x)²-(5x+16)²
=(4x²+5x+5x+16)(4x²+5x-5x-16)
=(4x²+10x+16)(4x²-16)
=(4x²+10x+16)(2x+4)(2x-4)
=8(2x²+5x+8)(x+2)(x-2)
答
(4x² + 5x)² - (5x + 16 )²= (4x² + 5x + 5x +16)(4x² + 5x - 5x - 16)= (4x² + 10x + 16)(4x² - 16)= 8(x + 2)(x - 2)(2x² + 5x + 8)
答
(4x²+5x)²-(5x+16)²
= (4x² + 5x + 5x +16)(4x² + 5x - 5x - 16)
= (4x² + 10x + 16)(4x² - 16)
= 8(x + 2)(x - 2)(2x² + 5x + 8)