diketahui p x q = 7 dan p + q = 6. nilai dari p² + q²=....

p²+q² = (p+q)²-2pq = (6)² - 2.7 = 22
semoga membantu

[tex] {(p + q)}^{2} = {p}^{2} + {q}^{2} + 2pq \\ sehingga \\ {p}^{2} + {q}^{2} = {(p + q)}^{2} - 2pq \\ {p}^{2} + {q}^{2} = {(6)}^{2} - 2(7) \\ {p}^{2} + {q}^{2} = 36 - 14 \\ {p}^{2} + {q}^{2} = 22[/tex]
semoga membantu ^-^