9. Solve the following equations, giving your answers correct to 2 decimal places. $$ \begin{array}{ll} ext { (a) } x^{2}+3 x-7=0 & ext { [N/95/P2] } \ ext { (b) } y^{2}+5 y-3=0 & {[N / 98 / P 2]} \ ext { (c) } 3 x^{2}+5 x-4=0 & {[N / 04 / P 2]}\end{array} $$

Question

9. Solve the following equations, giving your answers correct to 2 decimal places. $$ \begin{array}{ll}	ext { (a) } x^{2}+3 x-7=0 & 	ext { [N/95/P2] } \ 	ext { (b) } y^{2}+5 y-3=0 & {[N / 98 / P 2]} \ 	ext { (c) } 3 x^{2}+5 x-4=0 & {[N / 04 / P 2]}\end{array} $$

Christensen Wells · Accepted Answer

(a) $$ x_{1} \approx -4.54, x_{2} \approx 1.54 $$ (b) $$ y_{1} \approx -5.54, y_{2} \approx 0.54 $$ (c) $$ x_{1} \approx -2.26, x_{2} \approx 0.59 $$

9. Solve the following equations, giving your answers correct to 2 decimal places. \( \begin{array}{ll}\text { (a) } x^{2}+3 x-7=0 & \text { [N/95/P2] } \\ \text { (b) } y^{2}+5 y-3=0 & {[N / 98 / P 2]} \\ \text { (c) } 3 x^{2}+5 x-4=0 & {[N / 04 / P 2]}\end{array} \)

Solución ThothAI de Upstudy

Respuesta rápida

Solución paso a paso

9. Solve the following equations, giving your answers correct to 2 decimal places. \( \begin{array}{ll}\text { (a) } x^{2}+3 x-7=0 & \text { [N/95/P2] } \\ \text { (b) } y^{2}+5 y-3=0 & {[N / 98 / P 2]} \\ \text { (c) } 3 x^{2}+5 x-4=0 & {[N / 04 / P 2]}\end{array} \)

Solución ThothAI de Upstudy

Respuesta rápida

Solución paso a paso

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